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

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


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

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

Multiply -2 * 1
-2 = (-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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