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

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


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

Combine like terms: 2y + -2y = 0
-4 + 0 = -4
-4 = -4

Add '4' to each side of the equation.
-4 + 4 = -4 + 4

Combine like terms: -4 + 4 = 0
0 = -4 + 4

Combine like terms: -4 + 4 = 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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