Question
$$4-3x = 8-4x$$
Answer
$$ x = 4 $$
Explanation
$$ \begin{aligned} 4-3x &= 8-4x&& \text{move the $ \color{blue}{ -4x } $ to the left side and $ \color{blue}{ 4 }$ to the right} \\[1 em]-3x+4x &= 8-4&& \text{simplify left and right hand side} \\[1 em]x &= 4&& \\[1 em]x &= 4&& \\[1 em] \end{aligned} $$
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