3(a+6)=39

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Solution for 3(a+6)=39 equation:


Simplifying
3(a + 6) = 39

Reorder the terms:
3(6 + a) = 39
(6 * 3 + a * 3) = 39
(18 + 3a) = 39

Solving
18 + 3a = 39

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 = 39 + -18

Combine like terms: 18 + -18 = 0
0 + 3a = 39 + -18
3a = 39 + -18

Combine like terms: 39 + -18 = 21
3a = 21

Divide each side by '3'.
a = 7

Simplifying
a = 7

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