-z-4+z=91

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Solution for -z-4+z=91 equation: 


Simplifying
-1z + -4 + z = 91

Reorder the terms:
-4 + -1z + z = 91

Combine like terms: -1z + z = 0
-4 + 0 = 91
-4 = 91

Solving
-4 = 91

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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