### Home > A2C > Chapter 9 > Lesson 9.3.2 > Problem 9-146

9-146.

Solve the system of equations below for

Substitute *y* + *z* for *x* into the second equaton.

Multiply the third equation by −3 then add it to the earlier equation.

Substitute 4 for *y*.

Substitute 4 and −1 for *y* and *z*.