What is the answer to 15/5 =(20)/x ?

The answer to 15/5 =(20)/x is x= 20/3

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15/5 =(20)/x

\frac{15}{5} = \frac{20}{x}

x = \frac{20}{3}

Decimal Notation

x = 6.66666 \dots

Solution steps

\frac{15}{5} = \frac{20}{x}

Cross multiply

15 x = 100

Divide both sides by

15

x = \frac{20}{3}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = \frac{20}{3}

\frac{4}{6} = \frac{2}{x}

\frac{100}{x} = 2

\frac{1}{x - 3} + 4 = \frac{21}{x - 3}

\frac{5.232}{x} = 20.5

\frac{x + 12}{x - 4} = 2