### Home > CCA > Chapter 5 > Lesson 5.1.2 > Problem5-22

5-22.

Solve each system of equations below. Homework Help ✎

1. $y=3x+1$
$x+2y=-5$

• Substitute 3x + 1 for y in the second equation.

• x + 2(3x + 1) = −5

• (−1, −2)

1. $2x+3y=9$
$x-2y=1$

• Multiply the entire second equation by −2

• −2x + 4y = −2

• Add the equations together.

• Solve for x.

• x = 3

• (3, 1)