x+9+12=-4

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Solution for x+9+12=-4 equation: 


Simplifying
x + 9 + 12 = -4

Reorder the terms:
9 + 12 + x = -4

Combine like terms: 9 + 12 = 21
21 + x = -4

Solving
21 + x = -4

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 = -4 + -21

Combine like terms: 21 + -21 = 0
0 + x = -4 + -21
x = -4 + -21

Combine like terms: -4 + -21 = -25
x = -25

Simplifying
x = -25

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