2(-1)+1-(-1-2)=2-(-2)(-1)

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


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

Multiply 2 * -1
-2 + 1 + -1(-1 + -2) = 2 + -1(-2)(-1)

Combine like terms: -1 + -2 = -3
-2 + 1 + -1(-3) = 2 + -1(-2)(-1)

Multiply -1 * -3
-2 + 1 + 3 = 2 + -1(-2)(-1)

Combine like terms: -2 + 1 = -1
-1 + 3 = 2 + -1(-2)(-1)

Combine like terms: -1 + 3 = 2
2 = 2 + -1(-2)(-1)

Multiply -1 * -2
2 = 2 + 2 * -1

Multiply 2 * -1
2 = 2 + -2

Combine like terms: 2 + -2 = 0
2 = 0

Solving
2 = 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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