9a-6=12+3a

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Solution for 9a-6=12+3a equation:


Simplifying
9a + -6 = 12 + 3a

Reorder the terms:
-6 + 9a = 12 + 3a

Solving
-6 + 9a = 12 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-6 + 9a + -3a = 12 + 3a + -3a

Combine like terms: 9a + -3a = 6a
-6 + 6a = 12 + 3a + -3a

Combine like terms: 3a + -3a = 0
-6 + 6a = 12 + 0
-6 + 6a = 12

Add '6' to each side of the equation.
-6 + 6 + 6a = 12 + 6

Combine like terms: -6 + 6 = 0
0 + 6a = 12 + 6
6a = 12 + 6

Combine like terms: 12 + 6 = 18
6a = 18

Divide each side by '6'.
a = 3

Simplifying
a = 3

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