Mrs. Schmidt is 5 times as old as Cindy. If Mrs. Schmidt is 35, how old is Cindy?
You really should start trying to think of these formulas on your own, it will help you in the long run.
Let Cindy's age be $\displaystyle x$. Then
Cindy's Age x 5 = Mr. Schmidt's Age
So
$\displaystyle 5x=35$
$\displaystyle x=\frac{35}{5}$
$\displaystyle x=7$
Cindy is 7 years old.