What is the answer to 2/x = 8/20 ?

The answer to 2/x = 8/20 is x=5

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2/x = 8/20

\frac{2}{x} = \frac{8}{20}

x = 5

Solution steps

\frac{2}{x} = \frac{8}{20}

Cross multiply

40 = x \cdot 8

Switch sides

x \cdot 8 = 40

Divide both sides by

8

x = 5

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 5

\frac{( x + 2 ) !}{x !} = 0

a + \frac{1}{a} = 4

5 x^{- 2} - 19 x^{- 1} - 4 = 0

\frac{x}{x + 6} = \frac{9}{8}

- \frac{7}{x + 7} + 6 = \frac{x}{x + 7}