CBSE Class 9 Answered
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.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
2x + ay = 5
As (1,-1) is a solution of the equation, so it will satisfy this equation.
2(1) + a(-1) = 5
2 - a = 5
a = 2 - 5 = -3
Equation is 2x - 3y = 5
For x = 2, we have:
2(2) - 3y = 5
4 - 3y = 5
3y = -1
y = -
For x = 4, we have:
2(4) - 3y = 5
8 - 3y = 5
3y = 3
y = 3
Solutions are (2,-) and (4,3).
Answered by | 04 Jun, 2014, 03:23: PM
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