12a-6=9+7a

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Solution for 12a-6=9+7a equation:


Simplifying
12a + -6 = 9 + 7a

Reorder the terms:
-6 + 12a = 9 + 7a

Solving
-6 + 12a = 9 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
-6 + 12a + -7a = 9 + 7a + -7a

Combine like terms: 12a + -7a = 5a
-6 + 5a = 9 + 7a + -7a

Combine like terms: 7a + -7a = 0
-6 + 5a = 9 + 0
-6 + 5a = 9

Add '6' to each side of the equation.
-6 + 6 + 5a = 9 + 6

Combine like terms: -6 + 6 = 0
0 + 5a = 9 + 6
5a = 9 + 6

Combine like terms: 9 + 6 = 15
5a = 15

Divide each side by '5'.
a = 3

Simplifying
a = 3

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