$$ \begin{aligned} 14x+12 &= 3x+2&& \text{move the $ \color{blue}{ 3x } $ to the left side and $ \color{blue}{ 12 }$ to the right} \\[1 em]14x-3x &= 2-12&& \text{simplify left and right hand side} \\[1 em]11x &= -10&& \text{ divide both sides by $ 11 $ } \\[1 em]x &= -\frac{10}{11}&& \\[1 em] \end{aligned} $$
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