Respuesta :

orabellagreenland

Answer:

D

Step-by-step explanation:

I I think that's the method I know if I'm wrong telling me hope it helps.

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jman76316

answer

D, y=14-x

Step-by-step explanation:

b/c x+y/2=7

y=7×2-x

y=7/1 - x/2

y=7×2-x

y=14-x !!!!!!