### Home > GB8I > Chapter 3 Unit 4 > Lesson INT1: 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.

Distribute, then simplify.

Begin this problem by distributing the

and the negative that are outside of the parentheses, then simplify by isolating the variable onto one side of the equation.

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