Question
$$-5(2x+5)+5x-1 = -1$$
Answer
$$ x = -5 $$
Explanation
$$ \begin{aligned} -5(2x+5)+5x-1 &= -1&& \text{simplify left side} \\[1 em]-(10x+25)+5x-1 &= -1&& \\[1 em]-10x-25+5x-1 &= -1&& \\[1 em]-5x-26 &= -1&& \text{ move -26 to the right } \\[1 em]-5x &= -1+26&& \\[1 em]-5x &= 25&& \text{ divide both sides by $ -5 $ } \\[1 em]x &= -\frac{25}{5}&& \\[1 em]x &= -5&& \\[1 em] \end{aligned} $$
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