Respuesta :

Answer:

I think it is 6

Step-by-step explanation:

2x-y=5x+3y=7

   -3y     -3y

2x-4y=5x=7

-2x     -2x

-4y=3x=7

-4+3=-1=7

7-1=6

Answer:

its 7 !!!!!!!!!!!!!!

Step-by-step explanation:

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