-1-(-7)=

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Solution for -1-(-7)= equation: 


Simplifying
-1 + -1(-7) = 0

Multiply -1 * -7
-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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