12d-9d=15

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Solution for 12d-9d=15 equation: 


Simplifying
12d + -9d = 15

Combine like terms: 12d + -9d = 3d
3d = 15

Solving
3d = 15

Solving for variable 'd'.

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

Divide each side by '3'.
d = 5

Simplifying
d = 5

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