Respuesta :

Answer:

15x-8

Step-by-step explanation:

9x-12+4x+4+10x

9x+4x+10x  -12+4

15x-8

Answer:

23x-8

Step-by-step explanation:

1. First add the numbers

2. then C.L.K Combine Like Terms

9x-8+4x+10x

23x-8