2d+d=18

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Solution for 2d+d=18 equation: 


Simplifying
2d + d = 18

Combine like terms: 2d + d = 3d
3d = 18

Solving
3d = 18

Solving for variable 'd'.

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

Divide each side by '3'.
d = 6

Simplifying
d = 6

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