Question

Find x, if 1/5 = 2/x.

Answer 1

Answer:

$\frac{1}{5} = 2x \\ \frac{1}{5 \times 2} = x \\ \frac{1}{10} = x$

Answer 2

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$\sf \dfrac{1}{5} = 2x \\ \sf \dfrac{1}{5 \times 2} = x \\ \sf \dfrac{1}{10} = x$