Respuesta :
Answer:
7x-y
Step-by-step explanation:
You can make 2x and 5x togheter because both have an X. You can't subtrakt Y from 7x, because X and Y are different variables.
Answer:
7x-y
Step-by-step explanation:
You can make 2x and 5x togheter because both have an X. You can't subtrakt Y from 7x, because X and Y are different variables.