SOLUTION: I know the solution but I don't know how to get there. R=r/1-t solve for t

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Question 720281: I know the solution but I don't know how to get there. R=r/1-t solve for t
Answer by Simnepi(216) About Me  (Show Source):
You can put this solution on YOUR website!
Remove the fraction by multiplying by 1-t
so we have
%281-t%29%2AR=%281-t%29%28r%2F%281-t%29%29
Simplifying by cancelling on the left hand side gives us
(1-t)R=r
now we divide by R to leave the 1-t on its own, giving
%28%281-t%29R%29%2FR=r%2FR
simplifying by cancelling on the right hand side gives
1-t=r%2FR
now take 1 from both sides to give
1-t-1=%28r%2FR%29-1
simplify to get
-t=%28r%2FR%29-1
then reverse the signs
t=1-%28r%2FR%29