Question
$$16-8x = x+7$$
Answer
$$ x = 1 $$
Explanation
$$ \begin{aligned} 16-8x &= x+7&& \text{move the $ \color{blue}{ x } $ to the left side and $ \color{blue}{ 16 }$ to the right} \\[1 em]-8x-x &= 7-16&& \text{simplify left and right hand side} \\[1 em]-9x &= -9&& \text{ divide both sides by $ -9 $ } \\[1 em]x &= \frac{-9}{-9}&& \\[1 em]x &= 1&& \\[1 em] \end{aligned} $$
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