x+9+3=-12

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Solution for x+9+3=-12 equation: 


Simplifying
x + 9 + 3 = -12

Reorder the terms:
9 + 3 + x = -12

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

Solving
12 + x = -12

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 = -12 + -12

Combine like terms: 12 + -12 = 0
0 + x = -12 + -12
x = -12 + -12

Combine like terms: -12 + -12 = -24
x = -24

Simplifying
x = -24

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