-2+-1=0

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Solution for -2+-1=0 equation: 


Simplifying
-2 + -1 = 0

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

Solving
-3 = 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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