d*2=2d

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Solution for d*2=2d equation: 


Simplifying
d * 2 = 2d

Reorder the terms for easier multiplication:
2d = 2d

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

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

Combine like terms: 2d + -2d = 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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