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1) Solve 2x + y = -2 ; 3x – y =7

Answer»

Answer:

x = 1 , y = -4

Explanation:

2x + y = -2 ----> y = -(2x + 2) ----> 1

3X - y = 7 ----> y = 3x - 7 ----> 2

1 = 2

-(2x + 2) = 3x - 7

-2x - 2 = 3x - 7

3x + 2x = -2 + 7

5x = 5

x = 1

Put the value of x in 2x + y = -2

2(1) + y = -2

2 + y = -2

y = -4


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