can someone show me how to do these problems? Please? I really don't know how to answer them. I would really appreciate it...

Solve the following formula for the variable indicated
9. r = d/t, where r = rate, d = distance, and t = time for d


10. 3x - y = 10 for y

#9. Suppose I said 4 = d/7

Could you solve that for d? Well, follow the same steps for your problem.

#10:
add y to both sides, subtract 10 from both sides. Then y is all alone.