12a+9a=

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Solution for 12a+9a= equation:


Simplifying
12a + 9a = 0

Combine like terms: 12a + 9a = 21a
21a = 0

Solving
21a = 0

Solving for variable 'a'.

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

Divide each side by '21'.
a = 0

Simplifying
a = 0

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