Solving equations for one of its variables? alg 2 homework!!?

Question

how do i solve for r if I=prt

i don't get how you can solve for just letters!!!

Answer 1

i=prt   isolate the r by dividing everything away from it

i/pt=prt/pt

i/pt=r  (r is now isolated giving you what it is equal to)

Answer 2

P, r and t are variables that have been multiplied together (like 3(2)(6)). You can divide out the P and t to get r by itself. Remember, what you do to one side of an equation you do to the other. Then, r=i/Pt. Letters are just like numbers, it could be any number, but have faith that you're solving for one just as they should.

Answer 3

Letters are just placholders for numbers you don't have

Just solve it for r by doing the "do the same thing to both sides"

i=prt

i/p  = prt/p

i/p=rt

i/p/t = rt/t

i/p/t=r

or if that is confusing r = i/(pt)