$$ \begin{aligned} x\cdot\frac{75}{1000} &= 7030&& \text{multiply ALL terms by } \color{blue}{ 1000 }. \\[1 em]1000x\cdot\frac{75}{1000} &= 1000\cdot7030&& \text{cancel out the denominators} \\[1 em]75x &= 7030000&& \text{ divide both sides by $ 75 $ } \\[1 em]x &= \frac{7030000}{75}&& \\[1 em]x &= \frac{281200}{3}&& \\[1 em] \end{aligned} $$
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