$$2x-28 = 6x+8$$
Answer
$$ x = -9 $$
Explanation
$$ \begin{aligned} 2x-28 &= 6x+8&& \text{move the $ \color{blue}{ 6x } $ to the left side and $ \color{blue}{ -28 }$ to the right} \\[1 em]2x-6x &= 8+28&& \text{simplify left and right hand side} \\[1 em]-4x &= 36&& \text{ divide both sides by $ -4 $ } \\[1 em]x &= -\frac{36}{4}&& \\[1 em]x &= -9&& \\[1 em] \end{aligned} $$
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