$$-3x-3 = -4x+5$$
Answer
$$ x = 8 $$
Explanation
$$ \begin{aligned} -3x-3 &= -4x+5&& \text{move the $ \color{blue}{ -4x } $ to the left side and $ \color{blue}{ -3 }$ to the right} \\[1 em]-3x+4x &= 5+3&& \text{simplify left and right hand side} \\[1 em]x &= 8&& \\[1 em]x &= 8&& \\[1 em] \end{aligned} $$
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