Respuesta :

joy123333

Answer:

9x - 5y

Step-by-step explanation:

7x- 4y + 2x- y

Rearrange to see white are like terms

= 7x + 2x - 4y - y

These are the terms you add/subtract, depending on the term's sign.

= (7x + 2x) + (- 4y - y)

= 9x - 5y

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