Question
$$-5 \cdot \frac{x}{5} = \frac{25}{5}$$
Answer
$$ x = -5 $$
Explanation
$$ \begin{aligned} -5 \cdot \frac{x}{5} &= \frac{25}{5}&& \text{multiply ALL terms by } \color{blue}{ 5 }. \\[1 em]-5\cdot5 \cdot \frac{x}{5} &= 5\cdot\frac{25}{5}&& \text{cancel out the denominators} \\[1 em]-5x &= 25&& \text{ divide both sides by $ -5 $ } \\[1 em]x &= -\frac{25}{5}&& \\[1 em]x &= -5&& \\[1 em] \end{aligned} $$
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