Question
$$2(3x-5) = 10x-5x+15$$
Answer
$$ x = 25 $$
Explanation
$$ \begin{aligned} 2(3x-5) &= 10x-5x+15&& \text{simplify left and right hand side} \\[1 em]6x-10 &= 5x+15&& \text{move the $ \color{blue}{ 5x } $ to the left side and $ \color{blue}{ -10 }$ to the right} \\[1 em]6x-5x &= 15+10&& \text{simplify left and right hand side} \\[1 em]x &= 25&& \\[1 em]x &= 25&& \\[1 em] \end{aligned} $$
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