Respuesta :

you add like terms:
3x + 4x = 7x
-4 + -6 = -10
Your final answer is C: 7x-10

c

Step-by-step explanation:

(3x-4) + (4x-6)

3x-4 + 4x-6

3x+4x=7x

-4+-6=-10

7x-10