Question
$$x\cdot3-3x\cdot2+3x-1 = 0$$
Answer
This equation has no solution.
Explanation
$$ \begin{aligned} x\cdot3-3x\cdot2+3x-1 &= 0&& \text{simplify left side} \\[1 em]3x-6x+3x-1 &= 0&& \\[1 em]-1 &= 0&& \\[1 em] \end{aligned} $$
Since the statement $ \color{red}{ -1 = 0 } $ is FALSE, we conclude that the equation has no solution.
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