2(a+12)=9

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Solution for 2(a+12)=9 equation: 


Simplifying
2(a + 12) = 9

Reorder the terms:
2(12 + a) = 9
(12 * 2 + a * 2) = 9
(24 + 2a) = 9

Solving
24 + 2a = 9

Solving for variable 'a'.

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

Add '-24' to each side of the equation.
24 + -24 + 2a = 9 + -24

Combine like terms: 24 + -24 = 0
0 + 2a = 9 + -24
2a = 9 + -24

Combine like terms: 9 + -24 = -15
2a = -15

Divide each side by '2'.
a = -7.5

Simplifying
a = -7.5

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