### Home > CCA > Chapter 1 > Lesson 1.2.1 > Problem1-40

1-40.

Solve the equations below for x and check your solutions. Homework Help ✎

• Look at problem 1-36 earlier in this lesson for steps in solving these kinds of problems.

1. $−6+10x=x+12$

• x = 2

• Substitute the answer back into the original equation to make sure it works.

• −6 + 10(2) = (2) + 12
−6 + 20 = 2 + 12
14 = 14

It works!

1. $10+5x=2x−11$

1. $−9x=−3x+18$

1. $2x−9=−7x$

• x = 1
Refer to part (a).