Question
$$36x-72 = 20x+8$$
Answer
$$ x = 5 $$
Explanation
$$ \begin{aligned} 36x-72 &= 20x+8&& \text{move the $ \color{blue}{ 20x } $ to the left side and $ \color{blue}{ -72 }$ to the right} \\[1 em]36x-20x &= 8+72&& \text{simplify left and right hand side} \\[1 em]16x &= 80&& \text{ divide both sides by $ 16 $ } \\[1 em]x &= \frac{80}{16}&& \\[1 em]x &= 5&& \\[1 em] \end{aligned} $$
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