2d=20-d

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Solution for 2d=20-d equation: 


Simplifying
2d = 20 + -1d

Solving
2d = 20 + -1d

Solving for variable 'd'.

Move all terms containing d to the left, all other terms to the right.

Add 'd' to each side of the equation.
2d + d = 20 + -1d + d

Combine like terms: 2d + d = 3d
3d = 20 + -1d + d

Combine like terms: -1d + d = 0
3d = 20 + 0
3d = 20

Divide each side by '3'.
d = 6.666666667

Simplifying
d = 6.666666667

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