Question
$$\frac{490}{7}+\frac{57+7}{8}\cdot2-3\cdot(26+6) = 0$$
Answer
This equation has no solution.
Explanation
$$ \begin{aligned} \frac{490}{7}+\frac{57+7}{8}\cdot2-3\cdot(26+6) &= 0&& \text{multiply ALL terms by } \color{blue}{ 56 }. \\[1 em]56\cdot\frac{490}{7}+56\frac{57+7}{8}\cdot2-56\cdot3\cdot(26+6) &= 56\cdot0&& \text{cancel out the denominators} \\[1 em]3920+896-5376 &= 0&& \text{simplify left side} \\[1 em]-560 &= 0&& \\[1 em] \end{aligned} $$
Since the statement $ \color{red}{ -560 = 0 } $ is FALSE, we conclude that the equation has no solution.
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