-231=-3-4(1+7n)

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Solution for -231=-3-4(1+7n) equation: 



-231=-3-4(1+7n)

We move all terms to the left:

-231-(-3-4(1+7n))=0

We add all the numbers together, and all the variables

-(-3-4(7n+1))-231=0



We calculate terms in parentheses: -(-3-4(7n+1)), so:

-3-4(7n+1)

determiningTheFunctionDomain
-4(7n+1)-3

We multiply parentheses

-28n-4-3

We add all the numbers together, and all the variables

-28n-7

Back to the equation:

-(-28n-7)



We get rid of parentheses

28n+7-231=0

We add all the numbers together, and all the variables

28n-224=0

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

28n=224

n=224/28

n=8

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