Solve (5n)/8 - n/10 = (-21)/20

Evaluate

\frac{5 n}{8} - \frac{n}{10} = \frac{- 21}{20}

Use \frac{- a}{b} = \frac{a}{- b} = - \frac{a}{b} to rewrite the fraction

\frac{5 n}{8} - \frac{n}{10} = - \frac{21}{20}

Multiply both sides of the equation by LCD

(\frac{5 n}{8} - \frac{n}{10}) \times 40 = - \frac{21}{20} \times 40

Simplify the equation

More Steps

21 n = - \frac{21}{20} \times 40

Simplify the equation

More Steps

21 n = - 42

Divide both sides

\frac{21 n}{21} = \frac{- 42}{21}

Divide the numbers

n = \frac{- 42}{21}

Solution

More Steps

n = - 2

Solve the equation