Question
$$9x = 6(x+4)$$
Answer
$$ x = 8 $$
Explanation
$$ \begin{aligned} 9x &= 6(x+4)&& \text{simplify right side} \\[1 em]9x &= 6x+24&& \text{move the $ \color{blue}{ 6x } $ to the left side} \\[1 em]9x-6x &= 24&& \text{simplify left side} \\[1 em]3x &= 24&& \text{ divide both sides by $ 3 $ } \\[1 em]x &= \frac{24}{3}&& \\[1 em]x &= 8&& \\[1 em] \end{aligned} $$
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