a=3b for b

The solution for a = b=3a

did I do this backwards?

6 answers

What you did makes no sense.

a=3b
divide both sides by 3
a/3=b
I still don't get it does that mean b=3
Bobpursley's answer seems easy to understand.

b = a divided by 3
I did that wrong

c=2d for d

the solution is d= c /2

Correct
if a=3b for b

The solution is b =a/3

Do I understand this correctly now?
Yes. You're right.