What is the answer to 2/5 = 6/n ?

The answer to 2/5 = 6/n is n=15

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2/5 = 6/n

\frac{2}{5} = \frac{6}{n}

n = 15

Solution steps

\frac{2}{5} = \frac{6}{n}

Cross multiply

2 n = 30

Divide both sides by

2

n = 15

Verify Solutions

Find undefined (singularity) points:

n = 0

Combine undefined points with solutions:

n = 15

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

\frac{2}{7} = \frac{8}{x}

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

\frac{9}{18} = \frac{13.5}{x}

20 = \frac{x ^{2}}{15 - x}