### Home > CCG > Chapter 2 > Lesson 2.1.5 > Problem2-57

2-57.

Solve each system of equations below. Then verify that your solution makes each equation true. You may want to refer to the Math Notes box in Lesson 2.1.3.

1.  \begin{aligned}[t] y=5x-2 \;\,\\ y=2x+10 \end{aligned}

Use the Equal Values or Substitution Method.

Solve for $x$. If you need help doing so, refer to the Math Notes box referenced in the problem.

$x=4$

Substitute $4$ for $x$ and solve for $y$.
Repeat the same steps for part (b).

1.  \begin{aligned}[t] x=-2y-1 \;\;\\ 2x+y=-20 \end{aligned}

$2(-2y-1)+y=-20$