### Home > AC > Chapter 7 > Lesson 7.3.1 > Problem 7-88

7-88.

Solve each of the following equations for

*x*. Homework Help ✎=

3

*x*+ 2 = 7*x*− 8=

6(

*x*− 4) = 42

Multiply both sides by 18.

3*x* = 42

Divide both sides by 3.

*x* = 14

Don't forget to check your solution!

Subtract 3*x* from both sides.

3*x* + 2 = 7*x* − 8

−3*x* = −3*x*

2 = 4*x* − 8

Add 8 to both sides.

2 = 4*x* − 8

+8 = +8

10 = 4*x*

Divide by 4.

Don't forget to check your answer!

See the hints in part (a).

See the hints in part (b).

Divide both sides by 6.