100-(-91)=

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Solution for 100-(-91)= equation: 


Simplifying
100 + -1(-91) = 0

Multiply -1 * -91
100 + 91 = 0

Combine like terms: 100 + 91 = 191
191 = 0

Solving
191 = 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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