z-4-z=-1

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Solution for z-4-z=-1 equation: 


Simplifying
z + -4 + -1z = -1

Reorder the terms:
-4 + z + -1z = -1

Combine like terms: z + -1z = 0
-4 + 0 = -1
-4 = -1

Solving
-4 = -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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