Respuesta :

Answer:

7x+23

Step-by-step explanation:

use what ( I think) is called the distributive property

so

4(x+2)=4*x+2*4

which is

4x+8

and 3(x+5) = 3*x+5*3

which is

3x+15

so we have

3x+15+4x+8 add like terms

7x+23