x+9+12=-13

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Solution for x+9+12=-13 equation: 


Simplifying
x + 9 + 12 = -13

Reorder the terms:
9 + 12 + x = -13

Combine like terms: 9 + 12 = 21
21 + x = -13

Solving
21 + x = -13

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + x = -13 + -21

Combine like terms: 21 + -21 = 0
0 + x = -13 + -21
x = -13 + -21

Combine like terms: -13 + -21 = -34
x = -34

Simplifying
x = -34

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