9d-3d=12

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Solution for 9d-3d=12 equation: 


Simplifying
9d + -3d = 12

Combine like terms: 9d + -3d = 6d
6d = 12

Solving
6d = 12

Solving for variable 'd'.

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

Divide each side by '6'.
d = 2

Simplifying
d = 2

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