$$ \begin{aligned} 14700 &= x-\frac{1}{4}x&& \text{multiply ALL terms by } \color{blue}{ 4 }. \\[1 em]4\cdot14700 &= 4x-4 \cdot \frac{1}{4}x&& \text{cancel out the denominators} \\[1 em]58800 &= 4x-x&& \text{simplify right side} \\[1 em]58800 &= 3x&& \text{ swap the left and right side of the equation } \\[1 em]3x &= 58800&& \text{ divide both sides by $ 3 $ } \\[1 em]x &= \frac{58800}{3}&& \\[1 em]x &= 19600&& \\[1 em] \end{aligned} $$

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