3a-2=12+a

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


Simplifying
3a + -2 = 12 + a

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

Solving
-2 + 3a = 12 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-2 + 3a + -1a = 12 + a + -1a

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

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

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

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

Combine like terms: 12 + 2 = 14
2a = 14

Divide each side by '2'.
a = 7

Simplifying
a = 7

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