12=4+d/7

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Solution for 12=4+d/7 equation: 



12=4+d/7

We move all terms to the left:

12-(4+d/7)=0

We add all the numbers together, and all the variables

-(d/7+4)+12=0

We get rid of parentheses

-d/7-4+12=0

We multiply all the terms by the denominator


-d-4*7+12*7=0

We add all the numbers together, and all the variables

-1d+56=0

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

-d=-56

d=-56/-1

d=+56

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