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