What is the answer to (20)/(x-3)=5 ?

The answer to (20)/(x-3)=5 is x=7

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(20)/(x-3)=5

\frac{20}{x - 3} = 5

x = 7

Solution steps

\frac{20}{x - 3} = 5

Multiply both sides by

x - 3

20 = 5 (x - 3)

Switch sides

5 (x - 3) = 20

Divide both sides by

5

x - 3 = 4

Move

3

to the right side

x = 7

Verify Solutions

Find undefined (singularity) points:

x = 3

Combine undefined points with solutions:

x = 7

\frac{6}{a} = \frac{3}{8}

\frac{4}{15} = \frac{36}{c}

n, I = \frac{n E}{r + n r}

x, z = \frac{x}{x + y}

\frac{2 t + 1}{7 t} = \frac{4}{3}