Respuesta :
Combine the x terms since they are like terms and combine the constant terms since they are like terms.
x + 3x = 4x
9 + 7 = 16
4x + 16
Hopefully this helps and let me know if you need more help!
x + 3x = 4x
9 + 7 = 16
4x + 16
Hopefully this helps and let me know if you need more help!