d+d+d=9

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Solution for d+d+d=9 equation: 


Simplifying
d + d + d = 9

Combine like terms: d + d = 2d
2d + d = 9

Combine like terms: 2d + d = 3d
3d = 9

Solving
3d = 9

Solving for variable 'd'.

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

Divide each side by '3'.
d = 3

Simplifying
d = 3

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