-7n+28=-7-7(7+4n)

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Solution for -7n+28=-7-7(7+4n) equation: 



-7n+28=-7-7(7+4n)

We move all terms to the left:

-7n+28-(-7-7(7+4n))=0

We add all the numbers together, and all the variables

-7n-(-7-7(4n+7))+28=0



We calculate terms in parentheses: -(-7-7(4n+7)), so:

-7-7(4n+7)

determiningTheFunctionDomain
-7(4n+7)-7

We multiply parentheses

-28n-49-7

We add all the numbers together, and all the variables

-28n-56

Back to the equation:

-(-28n-56)



We get rid of parentheses

-7n+28n+56+28=0

We add all the numbers together, and all the variables

21n+84=0

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

21n=-84

n=-84/21

n=-4

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