$$\frac{x}{9}+5 = 9$$
Answer
$$ x = 36 $$
Explanation
$$ \begin{aligned} \frac{x}{9}+5 &= 9&& \text{multiply ALL terms by } \color{blue}{ 9 }. \\[1 em]9 \cdot \frac{x}{9}+9\cdot5 &= 9\cdot9&& \text{cancel out the denominators} \\[1 em]x+45 &= 81&& \text{ move 45 to the right } \\[1 em]x &= 81-45&& \\[1 em]x &= 36&& \\[1 em]x &= 36&& \\[1 em] \end{aligned} $$
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