100-80+-4=

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Solution for 100-80+-4= equation: 


Simplifying
100 + -80 + -4 = 0

Combine like terms: 100 + -80 = 20
20 + -4 = 0

Combine like terms: 20 + -4 = 16
16 = 0

Solving
16 = 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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