What is the answer to (18)/x = 20/15 ?

The answer to (18)/x = 20/15 is x= 27/2

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(18)/x = 20/15

\frac{18}{x} = \frac{20}{15}

x = \frac{27}{2}

Solution steps

\frac{18}{x} = \frac{20}{15}

Cross multiply

270 = x \cdot 20

Switch sides

x \cdot 20 = 270

Divide both sides by

20

x = \frac{27}{2}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = \frac{27}{2}

\frac{x}{x + 6} = \frac{2 x}{x + 1} - 1

\frac{70}{p} = - 7

\frac{x + 2}{2 x + 1} = x

x, x - 81 x^{- 3} = 0

8 x^{- 3} = (8 x)^{3}