### Home > PC > Chapter 7 > Lesson 7.3.3 > Problem 7-120

7-120.

Kiara was trying to solve the problem .

What new equation did she get?

She decided that she needed to make another substitution using the variable

. What would be a good substitution to make?Let

What is Kiara’s equation now?

If she had done the substitution in one step, what would

equal?