What is the answer to 7/8 = 5/x ?

The answer to 7/8 = 5/x is x= 40/7

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7/8 = 5/x

\frac{7}{8} = \frac{5}{x}

x = \frac{40}{7}

Decimal Notation

x = 5.71428 \dots

Solution steps

\frac{7}{8} = \frac{5}{x}

Cross multiply

7 x = 40

Divide both sides by

7

x = \frac{40}{7}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = \frac{40}{7}

- \frac{6}{7} = \frac{12}{x}

\frac{φ + 1}{φ} = φ

\frac{1}{1 - x} = 0

\frac{3}{1 - \frac{2}{z}} = 3 z

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