Respuesta :

Answer:

Step-by-step explanation:

its c=5

6y+18+3=51

6y+21=51

6y=51-21

6y=30

y=5

Answer:

c.5

Step-by-step explanation:

6(y+3)+3=51, 6 multiply both y and 3

6y+18+3=51

6y+21=51

6y+21-21=51-21

6y=30

6y/6=30/6

y=5

hope it's helpful

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