Question

Solve the system using elimination.
x-2y = - 12
- x + 4y = 20

Answer 1

Explanation:

x-2y=-12

-x+4y=20

2y= 8

y =4

x - 2(4) = -12

x - 8 = -12

x = -4

(-4, 4)

Answer 2

x=-4

y=4

Explanation:

Isolate a variable and plug into the other equation. Then solve for the variable and plug into one of the original equations.