3(-9+a)=9

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Solution for 3(-9+a)=9 equation: 


Simplifying
3(-9 + a) = 9
(-9 * 3 + a * 3) = 9
(-27 + 3a) = 9

Solving
-27 + 3a = 9

Solving for variable 'a'.

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

Add '27' to each side of the equation.
-27 + 27 + 3a = 9 + 27

Combine like terms: -27 + 27 = 0
0 + 3a = 9 + 27
3a = 9 + 27

Combine like terms: 9 + 27 = 36
3a = 36

Divide each side by '3'.
a = 12

Simplifying
a = 12

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