Respuesta :

Answer:

7: is 20+8a

8: is 8w+48

9: is 4a+12b

10: is 35y-21z

11: is 44a-33

12: is 3xy+4x

but give imbadatmathh the points

Step-by-step explanation:

hope this helps
7-12 will equal to -5 :)

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