Question

Given the system of equations, what is the solution?

x + 2y = 7

x - 2y = -1

A. {(-4, 6)}
B. {(-8, -12)}
C. {(3, 2)}

Answer 1

Answer:

5x + 7y - +6w = 0 -2x +By+ 8z - 5w = -2 3x +2y+ 4 - 0w = -3 5 | - 0 (A) A = | -2 8 , X= -- 5 (B) A = | -2 ਤੇ 8 W- B = 3 2 4 2 4 9 | 0 5 (C) A = | -2 [ 3 .