X+8=12-9

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Solution for X+8=12-9 equation: 


Simplifying
X + 8 = 12 + -9

Reorder the terms:
8 + X = 12 + -9

Combine like terms: 12 + -9 = 3
8 + X = 3

Solving
8 + X = 3

Solving for variable 'X'.

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

Add '-8' to each side of the equation.
8 + -8 + X = 3 + -8

Combine like terms: 8 + -8 = 0
0 + X = 3 + -8
X = 3 + -8

Combine like terms: 3 + -8 = -5
X = -5

Simplifying
X = -5

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