120=-2(4+8n)

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Solution for 120=-2(4+8n) equation: 



120=-2(4+8n)

We move all terms to the left:

120-(-2(4+8n))=0

We add all the numbers together, and all the variables

-(-2(8n+4))+120=0



We calculate terms in parentheses: -(-2(8n+4)), so:

-2(8n+4)

We multiply parentheses

-16n-8

Back to the equation:

-(-16n-8)



We get rid of parentheses

16n+8+120=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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