Question

Solve the equation by graphing.
2x – 5= -x + 7

Answer 1

x=4

Explanation:

2x−5=−x+7

Add x to both sides.

2x−5+x=7

Combine 2x and x to get 3x.

3x−5=7

Add 5 to both sides.

3x=7+5

Add 7 and 5 to get 12.

3x=12

Divide both sides by 3.

x=12/3

Divide 12 by 3 to get 4.

x=4

Answer 2

-2

Explanation: