Question
$$2x-5 = 3x+4$$
Answer
$$ x = -9 $$
Explanation
$$ \begin{aligned} 2x-5 &= 3x+4&& \text{move the $ \color{blue}{ 3x } $ to the left side and $ \color{blue}{ -5 }$ to the right} \\[1 em]2x-3x &= 4+5&& \text{simplify left and right hand side} \\[1 em]-x &= 9&& \text{switch signs on both sides} \\[1 em]x &= -9&& \\[1 em] \end{aligned} $$
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