9+7n=-2+2(n-7)

Solution for 9+7n=-2+2(n-7) equation:

9+7n=-2+2(n-7)

We move all terms to the left:

9+7n-(-2+2(n-7))=0


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

-2+2(n-7)

determiningTheFunctionDomain
2(n-7)-2

We multiply parentheses

2n-14-2

We add all the numbers together, and all the variables

2n-16

Back to the equation:

-(2n-16)


We get rid of parentheses

7n-2n+16+9=0

We add all the numbers together, and all the variables

5n+25=0

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

5n=-25

n=-25/5

n=-5