3d+6=4d+9

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Solution for 3d+6=4d+9 equation: 



3d+6=4d+9

We move all terms to the left:

3d+6-(4d+9)=0

We get rid of parentheses

3d-4d-9+6=0

We add all the numbers together, and all the variables

-1d-3=0

We move all terms containing d to the left, all other terms to the right

-d=3

d=3/-1

d=-3

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