3a-6-a=12+8

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Solution for 3a-6-a=12+8 equation:


Simplifying
3a + -6 + -1a = 12 + 8

Reorder the terms:
-6 + 3a + -1a = 12 + 8

Combine like terms: 3a + -1a = 2a
-6 + 2a = 12 + 8

Combine like terms: 12 + 8 = 20
-6 + 2a = 20

Solving
-6 + 2a = 20

Solving for variable 'a'.

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

Add '6' to each side of the equation.
-6 + 6 + 2a = 20 + 6

Combine like terms: -6 + 6 = 0
0 + 2a = 20 + 6
2a = 20 + 6

Combine like terms: 20 + 6 = 26
2a = 26

Divide each side by '2'.
a = 13

Simplifying
a = 13

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