-6n-20=-21+4(1-3n)

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Solution for -6n-20=-21+4(1-3n) equation: 



-6n-20=-21+4(1-3n)

We move all terms to the left:

-6n-20-(-21+4(1-3n))=0

We add all the numbers together, and all the variables

-6n-(-21+4(-3n+1))-20=0



We calculate terms in parentheses: -(-21+4(-3n+1)), so:

-21+4(-3n+1)

determiningTheFunctionDomain
4(-3n+1)-21

We multiply parentheses

-12n+4-21

We add all the numbers together, and all the variables

-12n-17

Back to the equation:

-(-12n-17)



We get rid of parentheses

-6n+12n+17-20=0

We add all the numbers together, and all the variables

6n-3=0

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

6n=3

n=3/6

n=1/2

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