What is the answer to 9/x = 2/5 ?

The answer to 9/x = 2/5 is x= 45/2

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9/x = 2/5

\frac{9}{x} = \frac{2}{5}

x = \frac{45}{2}

Decimal Notation

x = 22.5

Solution steps

\frac{9}{x} = \frac{2}{5}

Cross multiply

45 = x \cdot 2

Switch sides

x \cdot 2 = 45

Divide both sides by

2

x = \frac{45}{2}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = \frac{45}{2}

\frac{1}{x - 3} - 1 = \frac{5}{x - 3}

6^{- 7} = \frac{1}{x}

\frac{5}{6} = \frac{1}{x - 2}

10 = \frac{5}{x}

\frac{3 y + 5}{2 y} = 3