x+12=-21

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Solution for x+12=-21 equation: 


Simplifying
x + 12 = -21

Reorder the terms:
12 + x = -21

Solving
12 + x = -21

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 = -21 + -12

Combine like terms: 12 + -12 = 0
0 + x = -21 + -12
x = -21 + -12

Combine like terms: -21 + -12 = -33
x = -33

Simplifying
x = -33

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