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

This page was created using