What is the answer to 4= 7/5-2/c ?

The answer to 4= 7/5-2/c is c=-10/13

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4= 7/5-2/c

4 = \frac{7}{5} - \frac{2}{c}

c = - \frac{10}{13}

Decimal Notation

c = - 0.76923 \dots

Solution steps

4 = \frac{7}{5} - \frac{2}{c}

Multiply by LCM

20 c = 7 c - 10

Move

7 c

to the left side

13 c = - 10

Divide both sides by

13

c = - \frac{10}{13}

Verify Solutions

Find undefined (singularity) points:

c = 0

Combine undefined points with solutions:

c = - \frac{10}{13}

4 = \frac{7}{5} - \frac{2}{x}

\frac{b + 8}{b - 7} = \frac{3}{4}

\frac{10}{x - 3} = \frac{9}{x - 5}

v - \frac{16}{v} = 6

\frac{2}{x} = \frac{1}{2}