Multiply both sides by $16$

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

Simplify.

$x=11.2$

Multiply both sides by the common denominator, $15x$.

$6x=45$

Divide both sides by $6$.

$x=7.5$

Follow the steps in part (b).

Multiply both sides by $x$.

$x=−0.25$