Respuesta :

Answer:

7x+20

Step-by-step explanation:

The first thing you want to do is distribute the 2(5+3x)... etc. (I forgot the rest but try this answer out)

Answer:

7x + 20

Step-by-step explanation:

Step  1  :  

 2 • (3x + 5) +  (x + 10)

Step  2  

 7x + 20