### Home > PC3 > Chapter 3 > Lesson 3.1.1 > Problem 3-16

3-16.

Solve for and

*:*

Use either method below.

Method 1: Solve for in the second equation and substitute into the first equation.

Method 2: Multiply the second equation by

*.*

3-16.

Solve for and

Use either method below.

Method 1: Solve for in the second equation and substitute into the first equation.

Method 2: Multiply the second equation by