3n+7(-2n-3)=-8(7+2n)

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Solution for 3n+7(-2n-3)=-8(7+2n) equation: 



3n+7(-2n-3)=-8(7+2n)

We move all terms to the left:

3n+7(-2n-3)-(-8(7+2n))=0

We add all the numbers together, and all the variables

3n+7(-2n-3)-(-8(2n+7))=0

We multiply parentheses

3n-14n-(-8(2n+7))-21=0



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

-8(2n+7)

We multiply parentheses

-16n-56

Back to the equation:

-(-16n-56)



We add all the numbers together, and all the variables

-11n-(-16n-56)-21=0

We get rid of parentheses

-11n+16n+56-21=0

We add all the numbers together, and all the variables

5n+35=0

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

5n=-35

n=-35/5

n=-7

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