Question
$$2x+7-36 = x$$
Answer
$$ x = 29 $$
Explanation
$$ \begin{aligned} 2x+7-36 &= x&& \text{simplify left side} \\[1 em]2x-29 &= x&& \text{move the $ \color{blue}{ x } $ to the left side and $ \color{blue}{ -29 }$ to the right} \\[1 em]2x-x &= 29&& \text{simplify left side} \\[1 em]x &= 29&& \\[1 em]x &= 29&& \\[1 em] \end{aligned} $$
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