2a+3b =83a-4b=-5 – InterviewSolution

1.

2a+3b =83a-4b=-5

Answer»

2a + 3b = 8a = (8 - 3b)/2.......(1)

3a - 4b = - 5..........(2)

Put value of a from eq(1) in eq(2)3(8-3b)/2 - 4b = - 524 - 9b - 8b = - 1034 = 17bb = 34/17 = 2

From eq(1)a = (8 - 3*2)/2 = 2/2 = 1

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