-4+2-(1-1)=-2+1-(2-1)

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Solution for -4+2-(1-1)=-2+1-(2-1) equation: 


Simplifying
-4 + 2 + -1(1 + -1) = -2 + 1 + -1(2 + -1)

Combine like terms: 1 + -1 = 0
-4 + 2 + -1(0) = -2 + 1 + -1(2 + -1)

Multiply -1 * 0
-4 + 2 + 0 = -2 + 1 + -1(2 + -1)

Anything times zero is zero.
-4 + 2 + 0 = -2 + 1 + -1(2 + -1)

Combine like terms: -4 + 2 = -2
-2 + 0 = -2 + 1 + -1(2 + -1)

Combine like terms: -2 + 0 = -2
-2 = -2 + 1 + -1(2 + -1)

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

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

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

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

Add '2' to each side of the equation.
-2 + 2 = -2 + 2

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

Combine like terms: -2 + 2 = 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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