3d-9=9

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Solution for 3d-9=9 equation: 


Simplifying
3d + -9 = 9

Reorder the terms:
-9 + 3d = 9

Solving
-9 + 3d = 9

Solving for variable 'd'.

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

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

Combine like terms: -9 + 9 = 0
0 + 3d = 9 + 9
3d = 9 + 9

Combine like terms: 9 + 9 = 18
3d = 18

Divide each side by '3'.
d = 6

Simplifying
d = 6

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