Chapter 2 - Equations, Inequalities, and Problem Solving - 2.1 Solving Equations - 2.1 Exercise Set - Page 87: 68

$x=24$

Using the properties of equality, the solution to the given equation, $ \dfrac{3}{4}x=18 $, is \begin{array}{l}\require{cancel} \dfrac{4}{3}\cdot\dfrac{3}{4}x=18\cdot\dfrac{4}{3} \\\\ x=\cancel{3}\cdot6\cdot\dfrac{4}{\cancel{3}} \\\\ x=24 .\end{array}