7n+20=-3n-5(n-1)

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Solution for 7n+20=-3n-5(n-1) equation: 



7n+20=-3n-5(n-1)

We move all terms to the left:

7n+20-(-3n-5(n-1))=0



We calculate terms in parentheses: -(-3n-5(n-1)), so:

-3n-5(n-1)

We multiply parentheses

-3n-5n+5

We add all the numbers together, and all the variables

-8n+5

Back to the equation:

-(-8n+5)



We get rid of parentheses

7n+8n-5+20=0

We add all the numbers together, and all the variables

15n+15=0

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

15n=-15

n=-15/15

n=-1

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