Answer:
d=1/5f-3/5c
Step-by-step explanation:
First you would need to get d to one side and alone. So you would need to do is subtract 2d from both sides. Now you have 5d-3c=f. Next you add 3c to both sides. So now you have 5d=f-3c. After that you divide everything by 5 to get d by its self. So now d=1/5f-3/5c .
