12a-8=-20

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Solution for 12a-8=-20 equation: 


Simplifying
12a + -8 = -20

Reorder the terms:
-8 + 12a = -20

Solving
-8 + 12a = -20

Solving for variable 'a'.

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

Add '8' to each side of the equation.
-8 + 8 + 12a = -20 + 8

Combine like terms: -8 + 8 = 0
0 + 12a = -20 + 8
12a = -20 + 8

Combine like terms: -20 + 8 = -12
12a = -12

Divide each side by '12'.
a = -1

Simplifying
a = -1

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