3(d-4d)=9

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Solution for 3(d-4d)=9 equation: 



3(d-4d)=9

We move all terms to the left:

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

We add all the numbers together, and all the variables

3(-3d)-9=0

We multiply parentheses

-9d-9=0

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

-9d=9

d=9/-9

d=-1

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