$$ \begin{aligned} x-\frac{2}{4} &= 3&& \text{multiply ALL terms by } \color{blue}{ 4 }. \\[1 em]4x-4\cdot\frac{2}{4} &= 4\cdot3&& \text{cancel out the denominators} \\[1 em]4x-2 &= 12&& \text{ move -2 to the right } \\[1 em]4x &= 12+2&& \\[1 em]4x &= 14&& \text{ divide both sides by $ 4 $ } \\[1 em]x &= \frac{14}{4}&& \\[1 em]x &= \frac{7}{2}&& \\[1 em] \end{aligned} $$

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