What is the answer to 20/5 =(30)/x ?

The answer to 20/5 =(30)/x is x= 15/2

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20/5 =(30)/x

\frac{20}{5} = \frac{30}{x}

x = \frac{15}{2}

Decimal

x = 7.5

Solution steps

\frac{20}{5} = \frac{30}{x}

Cross multiply

20 x = 150

Divide both sides by

20

x = \frac{15}{2}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = \frac{15}{2}

\frac{( x - 2 )}{x} + \frac{4}{( x - 2 )} = \frac{8}{( x ^{2} - 2 x )}

x, \frac{1}{x} + \frac{1}{y} = \frac{1}{13}

b, a = 2 - \frac{1}{( 1 + b )}

\frac{7}{( 10 x )} = \frac{3}{20 + 5}

\frac{b}{4} = \frac{a}{x + 6}