$$18+\frac{x}{3} = 27$$
Answer
$$ x = 27 $$
Explanation
$$ \begin{aligned} 18+\frac{x}{3} &= 27&& \text{multiply ALL terms by } \color{blue}{ 3 }. \\[1 em]3\cdot18+3 \cdot \frac{x}{3} &= 3\cdot27&& \text{cancel out the denominators} \\[1 em]54+x &= 81&& \text{ move 54 to the right } \\[1 em]x &= 81-54&& \\[1 em]x &= 27&& \\[1 em]x &= 27&& \\[1 em] \end{aligned} $$
This page was created using
Equations Solver