4=7-(-d)

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Solution for 4=7-(-d) equation: 



4=7-(-d)

We move all terms to the left:

4-(7-(-d))=0

We add all the numbers together, and all the variables

-(7-(-1d))+4=0



We calculate terms in parentheses: -(7-(-1d)), so:

7-(-1d)

determiningTheFunctionDomain
-(-1d)+7

We get rid of parentheses

1d+7

We add all the numbers together, and all the variables

d+7

Back to the equation:

-(d+7)



We get rid of parentheses

-d-7+4=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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