Verified Answer :

First you do the top
8n+3n-7=82+32-7=16+6-7= 22-7=15
Then you found out the bottom
62n-3(n-1)=622-3(2-1)=622-31=64-31=24-3*1=24-3=21
15/21 is your answer.
Hope this helps! :)

Billymkhoi

Numerator:
8n+3n-7
= 11n-7

Plug n=2 in 11n-7, we have:
112-7= 15

Denominator:
62n-3(n-1)
= 12n-3n+3 (distributive property)
= 9n+3

Plug n=2 into 9n+3, we have:
9*2+3= 21

15/21
= (15/3) / (21/3)
= 5/7

The final answer is 5/7~

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