Question
$$13-\frac{26}{13}\cdot24+7 = 0$$
Answer
This equation has no solution.
Explanation
$$ \begin{aligned} 13-\frac{26}{13}\cdot24+7 &= 0&& \text{multiply ALL terms by } \color{blue}{ 13 }. \\[1 em]13\cdot13-13 \cdot \frac{26}{13}\cdot24+13\cdot7 &= 13\cdot0&& \text{cancel out the denominators} \\[1 em]169-624+91 &= 0&& \text{simplify left side} \\[1 em]-364 &= 0&& \\[1 em] \end{aligned} $$
Since the statement $ \color{red}{ -364 = 0 } $ is FALSE, we conclude that the equation has no solution.
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