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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

7n+7(7n+4)

We multiply parentheses

7n+49n+28

We add all the numbers together, and all the variables

56n+28

Back to the equation:

-(56n+28)



We get rid of parentheses

-56n-28-28=0

We add all the numbers together, and all the variables

-56n-56=0

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

-56n=56

n=56/-56

n=-1

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