What is the answer to 7/9 = 4/x ?

The answer to 7/9 = 4/x is x= 36/7

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7/9 = 4/x

\frac{7}{9} = \frac{4}{x}

x = \frac{36}{7}

Decimal Notation

x = 5.14285 \dots

Solution steps

\frac{7}{9} = \frac{4}{x}

Cross multiply

7 x = 36

Divide both sides by

7

x = \frac{36}{7}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = \frac{36}{7}

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

\frac{1}{27} = b^{- 3}

\frac{5}{x} = \frac{15}{27}

\frac{3}{7 x} - \frac{5}{x} = 3

\frac{( x - 3 )}{x} = 0