Question

Solve the system of equations and choose the correct ordered pair. 

2y = 8x - 14
4y = 8x + 4

Answer 1

A) 2y = 8x - 14
B) 4y = 8x + 4
Multiplying Equation "A" by -1

A) -2y = -8x +14 Then adding it to B
B) 4y = 8x + 4
2y = 18
y = 9
A) 2y = 8x - 14
A) 18 = 8x -14
A) 32 = 8x
x=4

Answer 2

-1(4y=8x+4)=-4y=-8x-4
+2y=8x-14
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-2y=-18
y=9

Then plug in y
2(9)=8x-14
18+14=8x
32/8=x
x=4