What is the answer to -15=5a+12-2a+6 ?

The answer to -15=5a+12-2a+6 is a=-11

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-15=5a+12-2a+6

- 15 = 5 a + 12 - 2 a + 6

a = - 11

Solution steps

- 15 = 5 a + 12 - 2 a + 6

Switch sides

5 a + 12 - 2 a + 6 = - 15

Group like terms

5 a - 2 a + 12 + 6 = - 15

Add similar elements:

5 a - 2 a = 3 a

3 a + 12 + 6 = - 15

Add the numbers:

12 + 6 = 18

3 a + 18 = - 15

Move

18

to the right side

3 a = - 33

Divide both sides by

3

a = - 11

∣ x ∣ \geq 19

\frac{4}{9} \cdot \frac{3}{4}

\frac{a + 2}{a ^{2} + a - 2} + \frac{3}{a ^{2} + 2 a - 3}

\frac{x ^{7}}{x ^{2}}

(\frac{5}{7})^{- 1}