Respuesta :

Answer:

3x + 8

Step-by-step explanation:

x + 5 + 2x + 3   If you put the x's together and the numbers without x's, you will see what is going on much easier.

x + 2x + 5 + 3 = (1 + 2)x + 5 + 3 = 3x + 8

Don't go any  further.