$$ \begin{aligned} 3128x &= 654x-\frac{54}{3}&& \text{multiply ALL terms by } \color{blue}{ 3 }. \\[1 em]3\cdot3128x &= 3\cdot654x-3\cdot\frac{54}{3}&& \text{cancel out the denominators} \\[1 em]9384x &= 1962x-54&& \text{move the $ \color{blue}{ 1962x } $ to the left side} \\[1 em]9384x-1962x &= -54&& \text{simplify left side} \\[1 em]7422x &= -54&& \text{ divide both sides by $ 7422 $ } \\[1 em]x &= -\frac{54}{7422}&& \\[1 em]x &= -\frac{9}{1237}&& \\[1 em] \end{aligned} $$

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