3d+d=4d

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Solution for 3d+d=4d equation: 


Simplifying
3d + d = 4d

Combine like terms: 3d + d = 4d
4d = 4d

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

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

Combine like terms: 4d + -4d = 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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