-20=5(2n-2)-7(-8-8n)

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Solution for -20=5(2n-2)-7(-8-8n) equation: 



-20=5(2n-2)-7(-8-8n)

We move all terms to the left:

-20-(5(2n-2)-7(-8-8n))=0

We add all the numbers together, and all the variables

-(5(2n-2)-7(-8n-8))-20=0



We calculate terms in parentheses: -(5(2n-2)-7(-8n-8)), so:

5(2n-2)-7(-8n-8)

We multiply parentheses

10n+56n-10+56

We add all the numbers together, and all the variables

66n+46

Back to the equation:

-(66n+46)



We get rid of parentheses

-66n-46-20=0

We add all the numbers together, and all the variables

-66n-66=0

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

-66n=66

n=66/-66

n=-1

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