stuck and cant get out?

Question

Peter says that the following equations are two ways to write the SAME formula. Solve them both for the same variable to decide whether or not you agree with Peter. Explain how you made your decision, based on solving for variables
p=(r-1)/r
and
p/(p+1)=r

Answer 1

p/(p+1)=r
p=rp+r multiply each side with p+1
p-rp=r

P=(r-1)/r
rP=(r-1) multiply each side with r
rP+1=r add 1 to each side
====
As you can see, they do not simply to be the same equation in the end therefore are different.

Answer 2

I don't think it is the same formula. If you insert a random number (like a 2) for "r" and then again for "p" you get p equalling 1/2 and r equalling 2/3. If you solve for "p" using the random number and then inserting the 1/2 into the "r" formula you get 1/3. I was not entirely sure what your question was asking. Hope this helps.

Answer 3

Peter is a pumpkin eater.

p/(p+1)=r
p=rp+r
p-rp=r
p(1-r)=r
p=r/(1-r)