Question

Show all work to solve the system of equations using the Elimination method:

2x+7y=12
x+4y=5

Answer 1

This is what I have so far:

Answer 2

STEP 1: Multiply second equation by -2.
After multiplying we have the following system:
2x+7y=12
2x−8y=−10

STEP 2: add the two equations together to eliminate x from the system.

y= 2