### Home > CCA > Chapter 1 > Lesson 1.1.3 > Problem 1-28

1-28.

Solve the equations below for and check your solutions.

Add

to both sides.

Add

to both sides.Divide both sides by

. Substitute

back into the original equation.

It works!

Refer to part (a).

Use the same method as parts (a), (b), and (c). Make sure to check your answer as shown in part (a).