12a-9=27

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Solution for 12a-9=27 equation: 


Simplifying
12a + -9 = 27

Reorder the terms:
-9 + 12a = 27

Solving
-9 + 12a = 27

Solving for variable 'a'.

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

Add '9' to each side of the equation.
-9 + 9 + 12a = 27 + 9

Combine like terms: -9 + 9 = 0
0 + 12a = 27 + 9
12a = 27 + 9

Combine like terms: 27 + 9 = 36
12a = 36

Divide each side by '12'.
a = 3

Simplifying
a = 3

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