100=4(-7-4n)

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Solution for 100=4(-7-4n) equation: 



100=4(-7-4n)

We move all terms to the left:

100-(4(-7-4n))=0

We add all the numbers together, and all the variables

-(4(-4n-7))+100=0



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

4(-4n-7)

We multiply parentheses

-16n-28

Back to the equation:

-(-16n-28)



We get rid of parentheses

16n+28+100=0

We add all the numbers together, and all the variables

16n+128=0

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

16n=-128

n=-128/16

n=-8

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