3a+8=2a-12

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Solution for 3a+8=2a-12 equation:


Simplifying
3a + 8 = 2a + -12

Reorder the terms:
8 + 3a = 2a + -12

Reorder the terms:
8 + 3a = -12 + 2a

Solving
8 + 3a = -12 + 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.
8 + 3a + -2a = -12 + 2a + -2a

Combine like terms: 3a + -2a = 1a
8 + 1a = -12 + 2a + -2a

Combine like terms: 2a + -2a = 0
8 + 1a = -12 + 0
8 + 1a = -12

Add '-8' to each side of the equation.
8 + -8 + 1a = -12 + -8

Combine like terms: 8 + -8 = 0
0 + 1a = -12 + -8
1a = -12 + -8

Combine like terms: -12 + -8 = -20
1a = -20

Divide each side by '1'.
a = -20

Simplifying
a = -20

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