3a+12=2a-108

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Solution for 3a+12=2a-108 equation:


Simplifying
3a + 12 = 2a + -108

Reorder the terms:
12 + 3a = 2a + -108

Reorder the terms:
12 + 3a = -108 + 2a

Solving
12 + 3a = -108 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
12 + 3a + -2a = -108 + 2a + -2a

Combine like terms: 3a + -2a = 1a
12 + 1a = -108 + 2a + -2a

Combine like terms: 2a + -2a = 0
12 + 1a = -108 + 0
12 + 1a = -108

Add '-12' to each side of the equation.
12 + -12 + 1a = -108 + -12

Combine like terms: 12 + -12 = 0
0 + 1a = -108 + -12
1a = -108 + -12

Combine like terms: -108 + -12 = -120
1a = -120

Divide each side by '1'.
a = -120

Simplifying
a = -120

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