Question
$$10x+25 = x-2$$
Answer
$$ x = -3 $$
Explanation
$$ \begin{aligned} 10x+25 &= x-2&& \text{move the $ \color{blue}{ x } $ to the left side and $ \color{blue}{ 25 }$ to the right} \\[1 em]10x-x &= -2-25&& \text{simplify left and right hand side} \\[1 em]9x &= -27&& \text{ divide both sides by $ 9 $ } \\[1 em]x &= -\frac{27}{9}&& \\[1 em]x &= -3&& \\[1 em] \end{aligned} $$
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