3a+6a=81

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Solution for 3a+6a=81 equation: 


Simplifying
3a + 6a = 81

Combine like terms: 3a + 6a = 9a
9a = 81

Solving
9a = 81

Solving for variable 'a'.

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

Divide each side by '9'.
a = 9

Simplifying
a = 9

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