# Solutions To Linear Equations Free Doubts and Solutions

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Q)

**banerjee_milky**21st November 2017, 12:05 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## The area of a triangle formed by the lines y=x, x=6, x=y is:

**vikasg13.hardware**6th September 2017, 2:04 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## dear sir/madam
can u plz solve the following word problem by using simultaneous linear equation methods
An aeroplane flies 1680 km with a head wind in 3.5 hours.On the return trip with same wind blowing the plane takes 3 hours.Find the plane's air speed and the wind speed.
Also can u plz explain the meaning of 'head wind' in the above question.

**naganshul369**11th June 2017, 3:10 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## A man has some Hens and Cows. If the number of hens is 48
and number of feet is 140 .Find the number of Cows.

**Rishav**10th April 2017, 11:14 AM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## hasan buys two kinds of cloth material for school uniforms, shirt material that costs hom Rs 50 per metre and trouser material that costs him Rs 90 per metre.for every 3 meterts of shirt material he buys 2 meters of the trouser material . he sells the material at 12% and 10% profit respectively. his total sale is Rs 36,600. how much trouser material did he buy ?

**Subham**25th September 2016, 10:35 AM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## If a point (-1,-5) lies on the graph of 3x=ay+7, then find the value of a.

**mkmishra101**8th March 2016, 1:14 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## SIR,
Is it necessary that in every single question of linear equation where we have to represent the statement in the form of linear equation of two veriables the ans what would come we have to write in ax+by+c=0 form ( or) by mistakely if we have writen then our marks would not be cut , it would be ?

**krishan_5**21st February 2016, 1:31 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## <div>The solution set of <img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=01fc584295b9efc548e4659ac8f4a23f.png" alt="2 over x plus 3 over y equals 2 space & space 3 over x plus 4 over y equals 20 space" align="middle" /> is </div> <div><ol> <li>(4,-2)</li> <li>(<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=619583187a50a0cf9005bbe981662877.png" alt="negative 1 half comma 1 fourth " align="middle" />)</li> <li>(2,-4)</li> <li> <img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=175bbd93c7ee21a46f869518bd543b22.png" alt="left parenthesis 1 fourth comma negative 1 half right parenthesis" align="middle" /> </li> </ol></div>

**Turjo Bhattacharjee**3rd August 2015, 7:40 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Two years ago, a man's age was three times the square of his son's age.In three years time, his age will be four times his son's age.Find their present age.

**singhaivk05**6th March 2015, 11:04 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## there is cce fa questions after exercise 13.3 in rd sharma i want solutions for it because that is also in the chapter and important to study so please help me as soon as posible because it is ith hw for me from school and toppers only help he in all this.
with regarts
shreyas

**shreyas5572**16th November 2014, 10:48 AM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## the linear equation 2x + 5y=16 has
a) a unique solution
b) two solutions
c)no solution
d) infinitely many solutions
Please explain the reasons behind the answer.

**kumar.ashlesha**25th October 2014, 8:27 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

*FIND THE ORTHOCENTER OF THE TRIANGLE FORMED BY THE LINES X=2 , Y=5 AND X+Y=6*

*FIND THE ORTHOCENTER OF THE TRIANGLE FORMED BY THE LINES X=2 , Y=5 AND X+Y=6*

**M.s.srinidhi21**30th September 2014, 8:56 AM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

##
THE SUM OF THE PRESENT AGES OF A AND B IS 50 AND THE DIFFERNCE IS 20 FIND THEIR AGES.

THE SUM OF THE PRESENT AGES OF A AND B IS 50 AND THE DIFFERNCE IS 20 FIND THEIR AGES.

**M.s.srinidhi21**27th September 2014, 11:44 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

##
PROVE THAT THE TRIANGLE FORMED BY THE LINES Y=0, 4X+3Y=12 AND 4X-3Y+12=0 IS AN ISOSCELES TRIANGLE.

PROVE THAT THE TRIANGLE FORMED BY THE LINES Y=0, 4X+3Y=12 AND 4X-3Y+12=0 IS AN ISOSCELES TRIANGLE.

**M.s.srinidhi21**27th September 2014, 11:30 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## What is the result when 3746365543.36474573X2646474464.6464746 divided by 2747465.26445

**jeel katira**21st June 2014, 9:51 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## A and B are two friends. A is elder to B by 5 years. B's sister C is half the age of B while A's father D is 8 years older than twice the age of B. If the present age of D is 48 years, find the present ages of A, B and C.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Solve for x:

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Express y in terms x in equation 2x - 3y = 12. Find the points where the line represented by this equation cuts x-axis and y-axis.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Two pens and three pencils together cost Rs. 20. Represent this statement as a linear equation in two variables and given two solutions for it. Also verify if (4,2) is a solution of the equation formed.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Express y in terms of x from the equation 3x + 2y = 8 and check whether the point (4, -2) lies on the line.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Solve for x :

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Express y in terms of x, given that 2x - 5y = 7. Check whether the point (-3, -2) is on the given line.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## If the point (-1, -5) lie on the graph of 3x = ay + 7, then find the value of 'a'.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## I am three times as old as my son. Five years later, I shall be two and a half times as old as my son. How old I am and how old is my son?

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Solve for x:

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## If the point (2k - 3, k + 2) lies on the graph of the equation 2x + 3y + 15 = 0, find value of k.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## A father is three times as old as his son. After 12 years, he will be twice as old as his son. Find present ages of father and son.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Find the value of a, for which the equation 2x + ay = 5 has (1,-1) as a solution. Find two more solutions for the equation obtained.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Give two solutions of the equation x + 3y = 8.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Solve the following equation:

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Find two different solutions for the linear equation 3x + 5y = 15 and check whether (2, 3) is a solution.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## If x = 2 and y = 1 is the solution of the linear equation 2x + 3y + k = 0, find the value of k.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Find four solutions of the following linear equation in two variables. 2 (x + 3) -3 (y - 1) = 0

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Solve for x:

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Find four solutions of the equation 2x - y = 4.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Find the two solutions for the equation ?

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## If one of the angle of the triangle is equal to the sum of the other two angles .Express this information into equivalent linear equation of two variables and also find the angles of triangle id measure of one of the angle is 60 degree.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Laxmi purchases some bananas and some oranges .Each banana costs Rs.2 while each orange costs Rs.3. If the total amount paid by Laxmi was Rs.30 and the number of oranges purchased by her was 6, then how many bananas did she purchase?

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## John age is 10 years less than three times his son’s age. If John son is 20 years old, then how old is John?

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Find the value of ‘ k’ if x=1 and y= is a solution of the equation ?

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Is a linear equation ?If yes then find the value of y if x=?

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## If is the solution for linear equation then What is the value of y?

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Check whether is a solution of ?

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## The sum of twice the odd number and the even number is 10.Write a linear equation for this information. Also find the odd number if the even number is 4

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## Write two solutions of the linear equation ?

**Topperlearning User**5th January 2014, 1:58 PM