Respuesta :

Answer:9x

Step-by-step explanation: u would just do 27-18

Answer:hey there

Step-by-step explanation:

27x - 18y

>9(3x-2y)

>27x =3*3*3*x

>-18 y=  -(3*3*2*y)

here 3 and 3 is common...so it is 9

hope this helps uuu