What is the answer to 5/x = 25/15 ?

The answer to 5/x = 25/15 is x=3

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5/x = 25/15

\frac{5}{x} = \frac{25}{15}

x = 3

Solution steps

\frac{5}{x} = \frac{25}{15}

Cross multiply

75 = x \cdot 25

Switch sides

x \cdot 25 = 75

Divide both sides by

25

x = 3

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 3

x - \frac{3 x + 5}{x + 7} = 7

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

x, a = \frac{x - y}{x + y}

3 + \frac{6}{2 - \frac{1}{4 - x}} = 5

\frac{24}{36} = \frac{x}{150 - x}