-2a+12=-18

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Solution for -2a+12=-18 equation: 


Simplifying
-2a + 12 = -18

Reorder the terms:
12 + -2a = -18

Solving
12 + -2a = -18

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 + -2a = -18 + -12

Combine like terms: 12 + -12 = 0
0 + -2a = -18 + -12
-2a = -18 + -12

Combine like terms: -18 + -12 = -30
-2a = -30

Divide each side by '-2'.
a = 15

Simplifying
a = 15

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