### Home > PC > Chapter 2 > Lesson 2.2.1 > Problem 2-39

2-39.

Solve:

1. Double the second equation and add it to the first.

2. Solve for .

3. Then substitute that answer back into one of the original equations.

4. Check your answer by substituting both answers for and

*into the other original equation.*

5. A true statement means that your answers were correct.