Respuesta :
Answer:
y = 35
Step-by-step explanation:
[tex]y - 15 = 20 \\ y - 15 + 15 = 20 + 15 \\ y = 20 + 15 \\ y = 35[/tex]
I hope that is useful for you :)
Easy. Just take -15 to the right hand side of the equation, which will give you, y = 20+15, implies y = 35.