Respuesta :

Answer: 11x + 12y

Step-by-step explanation:

Step 1: Just combine like terms

12x + 2y + - x + 10y

(12x + -x) + (2y + 10y)

= 11x + 12y

Answer:

you collect like terms

i.e 12x-x+2y+10y

13x+12y(sum)