3d=9d-9

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Solution for 3d=9d-9 equation: 


Simplifying
3d = 9d + -9

Reorder the terms:
3d = -9 + 9d

Solving
3d = -9 + 9d

Solving for variable 'd'.

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

Add '-9d' to each side of the equation.
3d + -9d = -9 + 9d + -9d

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

Combine like terms: 9d + -9d = 0
-6d = -9 + 0
-6d = -9

Divide each side by '-6'.
d = 1.5

Simplifying
d = 1.5

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