What is the answer to (-2)/(5y)=4 ?

The answer to (-2)/(5y)=4 is y=-1/10

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(-2)/(5y)=4

\frac{- 2}{5 y} = 4

y = - \frac{1}{10}

Decimal Notation

y = - 0.1

Solution steps

\frac{- 2}{5 y} = 4

Simplify

\frac{- 2}{5 y} : - \frac{2}{5 y}

- \frac{2}{5 y} = 4

Multiply both sides by

y

- \frac{2}{5} = 4 y

Switch sides

4 y = - \frac{2}{5}

Divide both sides by

4

y = - \frac{1}{10}

Verify Solutions

Find undefined (singularity) points:

y = 0

Combine undefined points with solutions:

y = - \frac{1}{10}

60.915 = \frac{8241.87}{5884.4 x}

\frac{1}{x - 2} + 3 = 0

B = \frac{F}{S - V}, S

0.4 = \frac{1}{x}

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