Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

The solution set of 2 over x plus 3 over y equals 2 space & space 3 over x plus 4 over y equals 20 space is 
  1. (4,-2)
  2. (negative 1 half comma 1 fourth )
  3. (2,-4)
  4.  left parenthesis 1 fourth comma negative 1 half right parenthesis           
Asked by Turjo Bhattacharjee | 03 Aug, 2015, 07:40: PM
answered-by-expert Expert Answer
P l e a s e space c h e c k space t h e space q u e s t i o n colon Q u e s t i o n space s h o u l d space b e colon 2 over x plus 3 over y equals 2 space a n d 3 over x plus 4 over y equals 4 S o l u t i o n colon C o n s i d e r space t h e space g i v e n space s e t space o f space e q u a t i o n s colon 2 over x plus 3 over y equals 2 space... left parenthesis 1 right parenthesis a n d 3 over x plus 4 over y equals 4 space... left parenthesis 2 right parenthesis S u b s t i t u t i n g space 1 over x equals u space a n d space 1 over y equals v comma space w e space h a v e comma 2 u plus 3 v equals 2... left parenthesis 3 right parenthesis 3 u plus 4 v equals 4... left parenthesis 4 right parenthesis M u l t i p l y i n g space e q u a t i o n space left parenthesis 3 right parenthesis space b y space 3 space a n d space a n d space e q u a t i o n space left parenthesis 4 right parenthesis space b y space 2 comma space w e space h a v e comma 6 u plus 9 v equals 6... left parenthesis 5 right parenthesis 6 u plus 8 v equals 8... left parenthesis 6 right parenthesis S u b t r a c t i n g space e q u a t i o n space left parenthesis 6 right parenthesis space f r o m space left parenthesis 5 right parenthesis comma space w e space h a v e comma v equals negative 2 rightwards double arrow 1 over y equals negative 2 rightwards double arrow y equals fraction numerator negative 1 over denominator 2 end fraction S u b s t i t u t i n g space v equals negative 2 space i n space e q u a t i o n space left parenthesis 3 right parenthesis comma space w e space h a v e comma 2 u plus 3 open parentheses negative 2 close parentheses equals 2 rightwards double arrow 2 u minus 6 equals 2 rightwards double arrow 2 u equals 2 plus 6 rightwards double arrow 2 u equals 8 rightwards double arrow u equals 8 over 2 rightwards double arrow u equals 4 rightwards double arrow 1 over x equals 4 rightwards double arrow x equals 1 fourth T h e r e f o r e comma space t h e space s o l u t i o n space s e t space equals open curly brackets 1 fourth comma fraction numerator negative 1 over denominator 2 end fraction close curly brackets
Answered by Vimala Ramamurthy | 04 Aug, 2015, 09:08: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 9 - Maths
write the linear equation 3x+2y=18 in the form of ax+by+c=0,also write the values of a,band c.Are(4,3)and (1,2) solutions of this equation
Asked by rambhau59182 | 15 Jan, 2024, 05:20: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
Ramu’s age is 3 8 th of his father’s age. If his father’s age is 32 years, then Ramu’s age is ___
Asked by achandrika140 | 27 Oct, 2023, 10:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
you decided to rent a car for your vocation the rental company charges 50 rupees rent the car plus 40 rupees per a day write an equation represent the situation
Asked by venkateshachari | 02 Oct, 2023, 11:42: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
7. A number consists of two digits whose sum is 12. If 18 is added to the number, the digits are reversed. Find the number.
Asked by Mn2790976 | 19 May, 2022, 09:45: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
if p = 100r - t . find value of p where r = 0.25 and t = 10
Asked by bhagwanlalvairagi | 04 Apr, 2022, 04:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
3a= 16-4
Asked by dineshkamar8546 | 06 Sep, 2021, 08:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
how much 2÷3×2÷5×5×6
Asked by gandisrividya | 28 Dec, 2020, 06:14: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
The solution of equation x-2y=4 is
Asked by mamatasaha070 | 18 Oct, 2020, 08:52: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
sir you told that x and y cannot be zero but in some sums you havw put the value as zero so can you explain how it happens 
Asked by Namita.kmr | 20 Jul, 2020, 10:39: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
For what value of k the points (k,-3)lies on the line 3x-y=6
Asked by nimesh | 15 Jul, 2020, 12:18: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×