2n-20=7-3(2n-7)

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Solution for 2n-20=7-3(2n-7) equation: 



2n-20=7-3(2n-7)

We move all terms to the left:

2n-20-(7-3(2n-7))=0



We calculate terms in parentheses: -(7-3(2n-7)), so:

7-3(2n-7)

determiningTheFunctionDomain
-3(2n-7)+7

We multiply parentheses

-6n+21+7

We add all the numbers together, and all the variables

-6n+28

Back to the equation:

-(-6n+28)



We get rid of parentheses

2n+6n-28-20=0

We add all the numbers together, and all the variables

8n-48=0

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

8n=48

n=48/8

n=6

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