### Home > AC > Chapter 5 > Lesson 5.2.3 > Problem5-87

5-87.

Solve each of the following equations for $x$. Then check each solution.

1. $\frac{x}{16}=\frac{7}{10}$

Set up a proportion to solve for $x$.

Multiply both sides by $16$.

$16\left(\frac{x}{16}\right) = \left(\frac{7}{10}\right)16$

$x = \frac{56}{5}$

$x=11.2$

1. $\frac{6}{15}=\frac{3}{x}$

Start by multiplying both sides by $x$.

1. $\frac{2x}{5}=\frac{12}{8}$

Follow the steps in part (a).

1. $-8=\frac{2}{x}$

Follow the steps in part (b).

$x=-0.25$