### 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.

4*x* + 2*y* = 76

*x* − 2*y* = 10

10*x* = 17

2. Solve for *x*.

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

4. Check your answer by substituting both answers for *x* and *y* into the other original equation.

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