9(n+1)=2(n+1)

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Solution for 9(n+1)=2(n+1) equation: 



9(n+1)=2(n+1)

We move all terms to the left:

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

We multiply parentheses

9n-(2(n+1))+9=0



We calculate terms in parentheses: -(2(n+1)), so:

2(n+1)

We multiply parentheses

2n+2

Back to the equation:

-(2n+2)



We get rid of parentheses

9n-2n-2+9=0

We add all the numbers together, and all the variables

7n+7=0

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

7n=-7

n=-7/7

n=-1

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