Question
$$7x-3(4x+8) = 11$$
Answer
$$ x = -7 $$
Explanation
$$ \begin{aligned} 7x-3(4x+8) &= 11&& \text{simplify left side} \\[1 em]7x-(12x+24) &= 11&& \\[1 em]7x-12x-24 &= 11&& \\[1 em]-5x-24 &= 11&& \text{ move -24 to the right } \\[1 em]-5x &= 11+24&& \\[1 em]-5x &= 35&& \text{ divide both sides by $ -5 $ } \\[1 em]x &= -\frac{35}{5}&& \\[1 em]x &= -7&& \\[1 em] \end{aligned} $$
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