9-7d=11+7(9+4d)

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Solution for 9-7d=11+7(9+4d) equation: 



9-7d=11+7(9+4d)

We move all terms to the left:

9-7d-(11+7(9+4d))=0

We add all the numbers together, and all the variables

-7d-(11+7(4d+9))+9=0



We calculate terms in parentheses: -(11+7(4d+9)), so:

11+7(4d+9)

determiningTheFunctionDomain
7(4d+9)+11

We multiply parentheses

28d+63+11

We add all the numbers together, and all the variables

28d+74

Back to the equation:

-(28d+74)



We get rid of parentheses

-7d-28d-74+9=0

We add all the numbers together, and all the variables

-35d-65=0

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

-35d=65

d=65/-35

d=-1+6/7

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