X+8-4=9

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Solution for X+8-4=9 equation: 


Simplifying
X + 8 + -4 = 9

Reorder the terms:
8 + -4 + X = 9

Combine like terms: 8 + -4 = 4
4 + X = 9

Solving
4 + X = 9

Solving for variable 'X'.

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

Add '-4' to each side of the equation.
4 + -4 + X = 9 + -4

Combine like terms: 4 + -4 = 0
0 + X = 9 + -4
X = 9 + -4

Combine like terms: 9 + -4 = 5
X = 5

Simplifying
X = 5

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