Respuesta :

Answer:

it will be 6y+3

Step-by-step explanation:

devide those with same constants

Answer:

6y + 3

Step-by-step explanation:

3y + 3x² + 3 - 3x² + 3y =

  • [tex]a^{b}  + c^{b} = (a+c)^{b}[/tex]

3x² - 3x² = (3x - 3x)² = 0² = 0

3y + 3 + 3y = 6y + 3