Question
$$5x+9 = 5+3x$$
Answer
$$ x = -2 $$
Explanation
$$ \begin{aligned} 5x+9 &= 5+3x&& \text{move the $ \color{blue}{ 3x } $ to the left side and $ \color{blue}{ 9 }$ to the right} \\[1 em]5x-3x &= 5-9&& \text{simplify left and right hand side} \\[1 em]2x &= -4&& \text{ divide both sides by $ 2 $ } \\[1 em]x &= -\frac{4}{2}&& \\[1 em]x &= -2&& \\[1 em] \end{aligned} $$
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