Respuesta :

caitlinotoole9

Answer:

y=2 and x=5

Step-by-step explanation:

first you substitute x=y+3

        [y+3+y=7]

Then Isolate y for y+3+y=7 ; y=2

        for x=y+3 substitute y=2

        x=3+2

        3+2=5

        x=5

Answer: y=2 and x=5

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