12a-3a=54

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Solution for 12a-3a=54 equation: 


Simplifying
12a + -3a = 54

Combine like terms: 12a + -3a = 9a
9a = 54

Solving
9a = 54

Solving for variable 'a'.

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

Divide each side by '9'.
a = 6

Simplifying
a = 6

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