4+-5+7=

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Solution for 4+-5+7= equation: 


Simplifying
4 + -5 + 7 = 0

Combine like terms: 4 + -5 = -1
-1 + 7 = 0

Combine like terms: -1 + 7 = 6
6 = 0

Solving
6 = 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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