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28-03-2020
Mathematics

contestada

6x+7y-4z-2x+3y-z+5x+5y+7z

Respuesta :

22-09-2020

Answer:

9x+15y+2z

Step-by-step explanation:

- just combine like terms

6x+7y-4z-2x+3y-z+5x+5y+7z

9x+7y-4z+3y-z+5y+7z

9x+15y-4z-z+7z

9x+15y+2z

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