Answer: The correct option is
(A) 3x plus 3 over x plus 7.
Step-by-step explanation: We are given to find the simplified form of the following expression :
"5x plus 4 over x plus 7 minus the fraction 2x plus 1 over x plus 7".
The given expression can be written and simplified as follows :
![(5x+4)/(x+7)-(2x+1)/(x+7)\\\\\\=((5x+4)-(2x+1))/(x+7)\\\\\\=(5x+4-2x-1)/(x+7)\\\\\\=(3x+3)/(x+7).](https://img.qammunity.org/2019/formulas/mathematics/college/nqkd5s3fqxblu39tfcbk7f7kya686tpsab.png)
Thus, the required simplified form is
"3x plus 3 over x plus 7".
Option (A) is CORRECT.