$$ \begin{aligned} 3x-2 &= 4(2x+1)&& \text{simplify right side} \\[1 em]3x-2 &= 8x+4&& \text{move the $ \color{blue}{ 8x } $ to the left side and $ \color{blue}{ -2 }$ to the right} \\[1 em]3x-8x &= 4+2&& \text{simplify left and right hand side} \\[1 em]-5x &= 6&& \text{ divide both sides by $ -5 $ } \\[1 em]x &= -\frac{6}{5}&& \\[1 em] \end{aligned} $$

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