1-(-2)=3

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Solution for 1-(-2)=3 equation: 


Simplifying
1 + -1(-2) = 3

Multiply -1 * -2
1 + 2 = 3

Combine like terms: 1 + 2 = 3
3 = 3

Add '-3' to each side of the equation.
3 + -3 = 3 + -3

Combine like terms: 3 + -3 = 0
0 = 3 + -3

Combine like terms: 3 + -3 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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