What is the answer to (40)/x = 5/7 ?

The answer to (40)/x = 5/7 is x=56

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(40)/x = 5/7

\frac{40}{x} = \frac{5}{7}

x = 56

Solution steps

\frac{40}{x} = \frac{5}{7}

Cross multiply

280 = x \cdot 5

Switch sides

x \cdot 5 = 280

Divide both sides by

5

x = 56

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 56

\frac{x}{x + 4} = \frac{8}{7}

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

x + 5 = \frac{14}{x}

\frac{( x - 6 ) ( x + 1 )}{x + 1} = 0

\frac{x - 4}{x - 3} = \frac{4}{x}