What is the answer to 4/x = 3/5 ?

The answer to 4/x = 3/5 is x= 20/3

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4/x = 3/5

\frac{4}{x} = \frac{3}{5}

x = \frac{20}{3}

Decimal Notation

x = 6.66666 \dots

Solution steps

\frac{4}{x} = \frac{3}{5}

Cross multiply

20 = x \cdot 3

Switch sides

x \cdot 3 = 20

Divide both sides by

3

x = \frac{20}{3}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = \frac{20}{3}

\frac{2}{3 - x} - \frac{6}{8 - x} = 1

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

3 = \frac{1}{x}

\frac{4 k - 10}{k} = 8

V = \frac{4 π ^{2} R ^{3}}{T ^{2}}