Question
$$\frac{4}{3}b = 10$$
Answer
$$ b = \dfrac{15}{2} $$
Explanation
$$ \begin{aligned} \frac{4}{3}b &= 10&& \text{multiply ALL terms by } \color{blue}{ 3 }. \\[1 em]3 \cdot \frac{4}{3}b &= 3\cdot10&& \text{cancel out the denominators} \\[1 em]4b &= 30&& \text{ divide both sides by $ 4 $ } \\[1 em]b &= \frac{30}{4}&& \\[1 em]b &= \frac{15}{2}&& \\[1 em] \end{aligned} $$
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