4x + 3y=107x+2y=11 – InterviewSolution

1.

4x + 3y=107x+2y=11

Answer»

4x + 3y = 10 ....(1)

7x + 2y = 11 ....(2)

2× Eq(1) - 3 × Eq(2)

8x + 6y = 20

21x + 6y = 33

8x - 21x = 20 - 33

- 13x = -13

x = 1

So, 3y = 10 - 4x = 10 - 4

3y = 6

y = 2

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