1+2-1=

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Solution for 1+2-1= equation: 


Simplifying
1 + 2 + -1 = 0

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

Combine like terms: 3 + -1 = 2
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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