X-9=9-x

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Solution for X-9=9-x equation: 


Simplifying
X + -9 = 9 + -1x

Reorder the terms:
-9 + X = 9 + -1x

Solving
-9 + X = 9 + -1x

Solving for variable 'X'.

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

Add '9' to each side of the equation.
-9 + 9 + X = 9 + 9 + -1x

Combine like terms: -9 + 9 = 0
0 + X = 9 + 9 + -1x
X = 9 + 9 + -1x

Combine like terms: 9 + 9 = 18
X = 18 + -1x

Simplifying
X = 18 + -1x

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