Question
$$10-3c = c$$
Answer
$$ c = \dfrac{5}{2} $$
Explanation
$$ \begin{aligned} 10-3c &= c&& \text{move the $ \color{blue}{ c } $ to the left side and $ \color{blue}{ 10 }$ to the right} \\[1 em]-3c-c &= -10&& \text{simplify left side} \\[1 em]-4c &= -10&& \text{ divide both sides by $ -4 $ } \\[1 em]c &= \frac{-10}{-4}&& \\[1 em]c &= \frac{5}{2}&& \\[1 em] \end{aligned} $$
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