-2x-4=-2x

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Solution for -2x-4=-2x equation: 


Simplifying
-2x + -4 = -2x

Reorder the terms:
-4 + -2x = -2x

Add '2x' to each side of the equation.
-4 + -2x + 2x = -2x + 2x

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

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

Solving
-4 = 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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