-2x-4=-2x-4

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


Simplifying
-2x + -4 = -2x + -4

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

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

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

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

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

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

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

Combine like terms: -2x + 2x = 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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