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Solve the equation; 3x - 2y = 7, x + 2y = -3

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Solve the equation; 3x - 2y = 7, x + 2y = -3

A.

x = 1, y = -2

B.

x = 1, y = 3

C.

x = -2, y = -1

D.

x = 4, y = -3

Correct answer is A

3x - 2y = 7; Solve by elimination method

x + 2y = -3

3x - 2y = 7.....(i)

-3x + 6y = -9.....(ii)

-8y = 16

y = 168=2

Put y = -2 into equation (i); 3x - 2y = 7

3x - 2(-2) = 7

3x + 4 = 7

3x = 7 - 4

3x = 3

x = 33 = 1