Respuesta :

Answer:

C

Step-by-step explanation:

3x + y + x - 6 + y

3x + x + y + y - 6

4x + 2y - 6

Answer:

c

Step-by-step explanation:

expression c is

3x + y + x - 6 + y ← collect like terms

= 3x + x + y + y - 6

= 4x + 2y - 6