Question
$$8a = \frac{124}{11}$$
Answer
$$ a = \dfrac{31}{22} $$
Explanation
$$ \begin{aligned} 8a &= \frac{124}{11}&& \text{multiply ALL terms by } \color{blue}{ 11 }. \\[1 em]11\cdot8a &= 11\cdot\frac{124}{11}&& \text{cancel out the denominators} \\[1 em]88a &= 124&& \text{ divide both sides by $ 88 $ } \\[1 em]a &= \frac{124}{88}&& \\[1 em]a &= \frac{31}{22}&& \\[1 em] \end{aligned} $$
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