Question
$$\frac{30}{5}\cdot(7-4)+2 = 0$$
Answer
This equation has no solution.
Explanation
$$ \begin{aligned} \frac{30}{5}\cdot(7-4)+2 &= 0&& \text{multiply ALL terms by } \color{blue}{ 5 }. \\[1 em]5 \cdot \frac{30}{5}\cdot(7-4)+5\cdot2 &= 5\cdot0&& \text{cancel out the denominators} \\[1 em]90+10 &= 0&& \text{simplify left side} \\[1 em]100 &= 0&& \\[1 em] \end{aligned} $$
Since the statement $ \color{red}{ 100 = 0 } $ is FALSE, we conclude that the equation has no solution.
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