xy-ab-8-xy+ab+4=

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Solution for xy-ab-8-xy+ab+4= equation: 


Simplifying
xy + -1ab + -8 + -1xy + ab + 4 = 0

Reorder the terms:
-8 + 4 + -1ab + ab + xy + -1xy = 0

Combine like terms: -8 + 4 = -4
-4 + -1ab + ab + xy + -1xy = 0

Combine like terms: -1ab + ab = 0
-4 + 0 + xy + -1xy = 0
-4 + xy + -1xy = 0

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

Solving
-4 = 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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