2(3a+9)=20

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Solution for 2(3a+9)=20 equation:


Simplifying
2(3a + 9) = 20

Reorder the terms:
2(9 + 3a) = 20
(9 * 2 + 3a * 2) = 20
(18 + 6a) = 20

Solving
18 + 6a = 20

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 + 6a = 20 + -18

Combine like terms: 18 + -18 = 0
0 + 6a = 20 + -18
6a = 20 + -18

Combine like terms: 20 + -18 = 2
6a = 2

Divide each side by '6'.
a = 0.3333333333

Simplifying
a = 0.3333333333

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