-r+7+3r-9-2r=

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Solution for -r+7+3r-9-2r= equation: 


Simplifying
-1r + 7 + 3r + -9 + -2r = 0

Reorder the terms:
7 + -9 + -1r + 3r + -2r = 0

Combine like terms: 7 + -9 = -2
-2 + -1r + 3r + -2r = 0

Combine like terms: -1r + 3r = 2r
-2 + 2r + -2r = 0

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

Solving
-2 = 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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