a=3b for b
The solution for a = b=3a
did I do this backwards?
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.
Yes, you did it backwards. The correct equation is a = 3b, not a = b = 3a.
To solve for b in the equation a = 3b, you need to isolate the variable b. Here's how you can do it:
1. Start with the equation: a = 3b.
2. Divide both sides of the equation by 3 to isolate the variable b. This will give you: a/3 = b.
So, the solution for b is b = a/3.
In your attempt, a = b = 3a, you are assuming that a is equal to b and 3a simultaneously, which is not correct based on the original equation a = 3b.