$$ \begin{aligned} 2+4x &= 6x+10-2&& \text{simplify left and right hand side} \\[1 em]4x+2 &= 6x+8&& \text{move the $ \color{blue}{ 6x } $ to the left side and $ \color{blue}{ 2 }$ to the right} \\[1 em]4x-6x &= 8-2&& \text{simplify left and right hand side} \\[1 em]-2x &= 6&& \text{ divide both sides by $ -2 $ } \\[1 em]x &= -\frac{6}{2}&& \\[1 em]x &= -3&& \\[1 em] \end{aligned} $$

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