Solve for x?

2x+y=7 solve x=5

1 Answer
May 28, 2018

y=-3
x=5

Explanation:

The question has already been solved for x as the term for x=5. Did you mean solve for y? Please correct me if I'm wrong.

2x+y=7

Substitute 5 for x, then solve for y:

2(5)+y=7
10+y=7
y=7-10
y=-3

If you substitute -3 for y and solve for x, you should get 5 again:

2x-3=7
2x=7+3
x=10/2
x=5