Respuesta :

Answer:

i dont know if am completely right since your question doesn't really make sense but i think its y = 10

Step-by-step explanation:

Remove the "y" -  -5 + 20

Add up - -5 + 20 = 15

Add the other -5y -   -5 + 15 = 10

Re-add the "y" -  10y

y = 10