Respuesta :

Answer: Two answers: f=-3

f=3

Step-by-step explanation:

3(f-5)=6f-12+3f

3f-15=6f-12+3f

-15+12=6f+3f-3f

F=-3

Answer2

3(f-5)=6f-12+3f

3f-15=6f-12+3f

3f-6f+3f=-12+15

F=3