### Home > CCAA8 > Chapter 4 Unit 5 > Lesson CCA: 4.2.4 > Problem 4-73

4-73.

Find all possible values for in each equation.

Divide

by to isolate the .

Subtract

from and then add to to get both answers.

Refer to parts (a) and (b).

Refer to parts (a) and (b).