7(n-1)=-2(2+n)

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Solution for 7(n-1)=-2(2+n) equation: 



7(n-1)=-2(2+n)

We move all terms to the left:

7(n-1)-(-2(2+n))=0

We add all the numbers together, and all the variables

7(n-1)-(-2(n+2))=0

We multiply parentheses

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



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

-2(n+2)

We multiply parentheses

-2n-4

Back to the equation:

-(-2n-4)



We get rid of parentheses

7n+2n+4-7=0

We add all the numbers together, and all the variables

9n-3=0

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

9n=3

n=3/9

n=1/3

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