Question
$$7k+8 = 2k-37$$
Answer
$$ k = -9 $$
Explanation
$$ \begin{aligned} 7k+8 &= 2k-37&& \text{move the $ \color{blue}{ 2k } $ to the left side and $ \color{blue}{ 8 }$ to the right} \\[1 em]7k-2k &= -37-8&& \text{simplify left and right hand side} \\[1 em]5k &= -45&& \text{ divide both sides by $ 5 $ } \\[1 em]k &= -\frac{45}{5}&& \\[1 em]k &= -9&& \\[1 em] \end{aligned} $$
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