12-20.5=

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Solution for 12-20.5= equation: 


Simplifying
12 + -20.5 = 0

Combine like terms: 12 + -20.5 = -8.5
-8.5 = 0

Solving
-8.5 = 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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