What is the answer to 2/5 = 3/x ?

The answer to 2/5 = 3/x is x= 15/2

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2/5 = 3/x

\frac{2}{5} = \frac{3}{x}

x = \frac{15}{2}

Decimal Notation

x = 7.5

Solution steps

\frac{2}{5} = \frac{3}{x}

Cross multiply

2 x = 15

Divide both sides by

2

x = \frac{15}{2}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = \frac{15}{2}

(x) = 4 x + 720 + \frac{921600}{x}

0.3 = \frac{18}{x}

\frac{x ^{2} - 5 x + 6}{x - 3} = 0

\frac{x}{4} = \frac{- 1}{x + 5}

\frac{x + 2}{x - 2} = 0