-2(a+6)=-12

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Solution for -2(a+6)=-12 equation: 


Simplifying
-2(a + 6) = -12

Reorder the terms:
-2(6 + a) = -12
(6 * -2 + a * -2) = -12
(-12 + -2a) = -12

Add '12' to each side of the equation.
-12 + 12 + -2a = -12 + 12

Combine like terms: -12 + 12 = 0
0 + -2a = -12 + 12
-2a = -12 + 12

Combine like terms: -12 + 12 = 0
-2a = 0

Solving
-2a = 0

Solving for variable 'a'.

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

Divide each side by '-2'.
a = 0

Simplifying
a = 0

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