-12-2a-3a=-27

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Solution for -12-2a-3a=-27 equation: 


Simplifying
-12 + -2a + -3a = -27

Combine like terms: -2a + -3a = -5a
-12 + -5a = -27

Solving
-12 + -5a = -27

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '12' to each side of the equation.
-12 + 12 + -5a = -27 + 12

Combine like terms: -12 + 12 = 0
0 + -5a = -27 + 12
-5a = -27 + 12

Combine like terms: -27 + 12 = -15
-5a = -15

Divide each side by '-5'.
a = 3

Simplifying
a = 3

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