3(3+a)=66

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Solution for 3(3+a)=66 equation: 


Simplifying
3(3 + a) = 66
(3 * 3 + a * 3) = 66
(9 + 3a) = 66

Solving
9 + 3a = 66

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 + 3a = 66 + -9

Combine like terms: 9 + -9 = 0
0 + 3a = 66 + -9
3a = 66 + -9

Combine like terms: 66 + -9 = 57
3a = 57

Divide each side by '3'.
a = 19

Simplifying
a = 19

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