Fraction equation

Ex over four is equal to two and one-fifth times ex plus three over ten.

What is ex>

Correct answer:

x =  -0.1538

Step-by-step explanation:

$$\begin{gathered} {\displaystyle \frac{x}{4}}=2{\displaystyle \frac{1}{5}}\cdot x+{\displaystyle \frac{3}{10}} \\ x\mathrm{/}4=(2+1\mathrm{/}5)\cdot x+3\mathrm{/}10 \\ 39x=-6 \\ x={\displaystyle \frac{-2}{13}}\doteq -0.153846=-{\displaystyle \frac{2}{13}}=-0.1538 \end{gathered}$$

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