x+(9-x)=9

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Solution for x+(9-x)=9 equation: 


Simplifying
x + (9 + -1x) = 9

Remove parenthesis around (9 + -1x)
x + 9 + -1x = 9

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

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

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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