What is the answer to 8/7 = 4/x ?

The answer to 8/7 = 4/x is x= 7/2

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8/7 = 4/x

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

x = \frac{7}{2}

Decimal Notation

x = 3.5

Solution steps

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

Cross multiply

8 x = 28

Divide both sides by

8

x = \frac{7}{2}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = \frac{7}{2}

j, a = \frac{j + b}{j - c}

y, y = \frac{6}{y}

13 + \frac{6}{y} y = 6

\frac{x}{\frac{2}{5} ( x - 2 )} = 4 x

x + \frac{1}{x} = 10