3r+7-3r-12=

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Solution for 3r+7-3r-12= equation: 


Simplifying
3r + 7 + -3r + -12 = 0

Reorder the terms:
7 + -12 + 3r + -3r = 0

Combine like terms: 7 + -12 = -5
-5 + 3r + -3r = 0

Combine like terms: 3r + -3r = 0
-5 + 0 = 0
-5 = 0

Solving
-5 = 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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