Question

Solve the system by eliminating one of the variables by addition or subtraction

2x-y=4
3x+y=6

Answer 1

(2,0)

Explanation:

2x-y=4 equation 1

3x+y=6 equation 2

5x=10 eliminate y by adding equations

x=2

solve for y

2x-y=4

2(2)-y=4

4-y=4

-y=0

y=0

check answer:

3x+y=6

3(2)+0=6

6=6