### Home > A2C > Chapter 1 > Lesson 1.1.2 > Problem 1-22

1-22.

Given and

Calculate

.Substitute

for each in.Simplify.

Solve

.Substitute

for .Subtract

from both sides. Get the

-term alone.

Calculate

.Substitute

for each in.Simplify.

Solve

.Follow the same steps from part (a).

Solve

. Follow the same steps from part (b).

Solve

.Follow the same method from part (c).

Use the eTool below to solve for each part.

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