12-(-9+1)=2

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Solution for 12-(-9+1)=2 equation: 


Simplifying
12 + -1(-9 + 1) = 2

Combine like terms: -9 + 1 = -8
12 + -1(-8) = 2

Multiply -1 * -8
12 + 8 = 2

Combine like terms: 12 + 8 = 20
20 = 2

Solving
20 = 2

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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