20y-20y=-1

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Solution for 20y-20y=-1 equation: 


Simplifying
20y + -20y = -1

Combine like terms: 20y + -20y = 0
0 = -1

Solving
0 = -1

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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