2x-5y-16=03x+4y-1=0 – InterviewSolution

1.

2x-5y-16=03x+4y-1=0

Answer»

2x - 5y = 16 ......(1)3x + 4y = 1 ........(2)

Adding eliminating y by4 × eq(2) + 5 × eq(2)

8x - 20y = 6415x + 20y = 5gives23x = 69x = 69/23 = 3x = 3

So, 2×3 - 5y = 165y = 10y = -10/5 = -2y = -2

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