I NEED HELP WITH THIS ASAP I CAN NOT FIND ANY COMMON GROUND FOR THESE NUMBERS ALL HELP IS APPRECIATED THANK YOU

I NEED HELP WITH THIS ASAP I CAN NOT FIND ANY COMMON GROUND FOR THESE NUMBERS ALL HELP IS APPRECIATED THANK YOU class=

Answer :

Answer:

45 is um 9x+xy-4y

Step-by-step explanation:

I did it it was a simplify type thing