What is the answer to -2/(u+8)=-7 ?

The answer to -2/(u+8)=-7 is u=-54/7

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-2/(u+8)=-7

- \frac{2}{u + 8} = - 7

u = - \frac{54}{7}

Decimal Notation

u = - 7.71428 \dots

Solution steps

- \frac{2}{u + 8} = - 7

Multiply both sides by

u + 8

- 2 = - 7 (u + 8)

Switch sides

- 7 (u + 8) = - 2

Divide both sides by

- 7

u + 8 = \frac{2}{7}

Move

8

to the right side

u = - \frac{54}{7}

Verify Solutions

Find undefined (singularity) points:

u = - 8

Combine undefined points with solutions:

u = - \frac{54}{7}

\frac{13 + 2 t}{4 t + 1} = \frac{3}{4}

\frac{x - 7}{4 x} + 1 = \frac{x + 3}{x}

x = (\frac{x}{2 + x}) - 5

1.5 a^{2} = \frac{6}{a ^{2}}

x^{- 2} = 7