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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

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



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

-3(n+3)

We multiply parentheses

-3n-9

Back to the equation:

-(-3n-9)



We get rid of parentheses

7n+3n+9-7=0

We add all the numbers together, and all the variables

10n+2=0

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

10n=-2

n=-2/10

n=-1/5

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