-y+y-1=

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Solution for -y+y-1= equation: 


Simplifying
-1y + y + -1 = 0

Reorder the terms:
-1 + -1y + y = 0

Combine like terms: -1y + y = 0
-1 + 0 = 0
-1 = 0

Solving
-1 = 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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