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Home > CC4 > Chapter 8 > Lesson 8.1.6 > Problem 8-85

8-85.

Solve each equation below for the indicated variable. Homework Help ✎

  1. Solve for l: P = 2l + 2w

  2. Solve for π : C = 2πr

  3. Solve for r: V = πr3

Review Appendix A on solving equations and the beginning of chapter 6.

Add and subtract terms before you multiply and divide to isolate the variable.

Use division property of equality to isolate π.

What is the inverse operation of r³?