Respuesta :

Answer:

10c-4d

Step-by-step explanation:

3c-9d+7c+5d

combine like terms

3c+7c -9d+5d

10c-4d

Answer:

The answer is 10c-4d, baby

Step-by-step explanation:

I just combined my like terms and that's the answer I ended up with.

3c + 7c = 10c

-9d + 5d = -4d

So there ya have it

Hope I helped.