Question 61053
How do u do this question: Solve for "r" in the formula: S=L-rL

{{{S=L-rL}}}
So, {{{S=L(1-r)}}}
Divide both sides by L.
Then, {{{S/L = 1-r}}}
Subtract 1 from both sides.
Then, {{{S/L - 1 = -r}}}
Multiply both sides by -1.
Then {{{1 - S/L = r}}}