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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
answered-by-expert 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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