3(6+a)=30

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Solution for 3(6+a)=30 equation: 


Simplifying
3(6 + a) = 30
(6 * 3 + a * 3) = 30
(18 + 3a) = 30

Solving
18 + 3a = 30

Solving for variable 'a'.

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

Add '-18' to each side of the equation.
18 + -18 + 3a = 30 + -18

Combine like terms: 18 + -18 = 0
0 + 3a = 30 + -18
3a = 30 + -18

Combine like terms: 30 + -18 = 12
3a = 12

Divide each side by '3'.
a = 4

Simplifying
a = 4

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