x+9+4=0

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Solution for x+9+4=0 equation: 


Simplifying
x + 9 + 4 = 0

Reorder the terms:
9 + 4 + x = 0

Combine like terms: 9 + 4 = 13
13 + x = 0

Solving
13 + x = 0

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + x = 0 + -13

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

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

Simplifying
x = -13

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