Question
$$3 \cdot \frac{x}{5} = 9$$
Answer
$$ x = 15 $$
Explanation
$$ \begin{aligned} 3 \cdot \frac{x}{5} &= 9&& \text{multiply ALL terms by } \color{blue}{ 5 }. \\[1 em]5\cdot3 \cdot \frac{x}{5} &= 5\cdot9&& \text{cancel out the denominators} \\[1 em]3x &= 45&& \text{ divide both sides by $ 3 $ } \\[1 em]x &= \frac{45}{3}&& \\[1 em]x &= 15&& \\[1 em] \end{aligned} $$
This page was created using
Equations Solver