2r-18-2r=

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Solution for 2r-18-2r= equation: 


Simplifying
2r + -18 + -2r = 0

Reorder the terms:
-18 + 2r + -2r = 0

Combine like terms: 2r + -2r = 0
-18 + 0 = 0
-18 = 0

Solving
-18 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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