Question
$$6x+7 = 2x-13$$
Answer
$$ x = -5 $$
Explanation
$$ \begin{aligned} 6x+7 &= 2x-13&& \text{move the $ \color{blue}{ 2x } $ to the left side and $ \color{blue}{ 7 }$ to the right} \\[1 em]6x-2x &= -13-7&& \text{simplify left and right hand side} \\[1 em]4x &= -20&& \text{ divide both sides by $ 4 $ } \\[1 em]x &= -\frac{20}{4}&& \\[1 em]x &= -5&& \\[1 em] \end{aligned} $$
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