CPM Homework Banner

Home > CC4 > Chapter 3 > Lesson 3.3.3 > Problem 3-141

3-141.

Solve each of the following equations. Explain or justify each of your steps. Be sure to show your work carefully and check your answers. Homework Help ✎

  • Distribute, then simplify.
    6x - 8 = 22
    6x = 30

  • x = 5

  • Begin this problem by distributing the 6 and the negative that are outside of the parentheses, then simplify by isolating the variable onto one side of the equation.
    12x − 30 = −x − 4
    13x − 30 = −4
    13x = 26

  • x = 2

  • Use the same methods outlined in parts (a) and (b) to solve parts (c) and (d). Check your answer.