8-9=4

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Solution for 8-9=4 equation: 


Simplifying
8 + -9 = 4

Combine like terms: 8 + -9 = -1
-1 = 4

Solving
-1 = 4

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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