-7d+1/3(9+12d)=78

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Solution for -7d+1/3(9+12d)=78 equation: 



-7d+1/3(9+12d)=78

We move all terms to the left:

-7d+1/3(9+12d)-(78)=0



Domain of the equation: 3(9+12d)!=0

d∈R



We add all the numbers together, and all the variables

-7d+1/3(12d+9)-78=0

We multiply all the terms by the denominator


-7d*3(12d+9)-78*3(12d+9)+1=0

Wy multiply elements

-21d^2(1-234d(1+1=0

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