(X+12)=9

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Solution for (X+12)=9 equation: 


Simplifying
(X + 12) = 9

Reorder the terms:
(12 + X) = 9

Remove parenthesis around (12 + X)
12 + X = 9

Solving
12 + X = 9

Solving for variable 'X'.

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

Add '-12' to each side of the equation.
12 + -12 + X = 9 + -12

Combine like terms: 12 + -12 = 0
0 + X = 9 + -12
X = 9 + -12

Combine like terms: 9 + -12 = -3
X = -3

Simplifying
X = -3

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