Answer:
n =1/3
Step-by-step explanation:
2/(n+1)=9/6
Using cross products
2 * 6 = 9 * (n+1)
12 = 9( n+1)
Distribute
12 = 9n+9
Subtract 9 from each side
12 -9 = 9n+9-9
3 = 9n
Divide each side by 9
3/9 = 9n/9
1/3 =n
n = 1/3
2/n + 1 = 9/6
2 * 6 = ( n + 1 ) * 9
12 = ( n + 1 ) * 9
( n + 1 ) * 9 = 12
( n + 1) / 9
12 / 9
n + 1 = 4/3
n + 1 - 1 = 4/3 -1
