4+-8.9=

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Solution for 4+-8.9= equation: 


Simplifying
4 + -8.9 = 0

Combine like terms: 4 + -8.9 = -4.9
-4.9 = 0

Solving
-4.9 = 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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