Question

solve for r in terms of s, t, and u.
s = rtu
r =

Explanation:

Step1: Isolate r by dividing tu

Divide both sides of the equation by $tu$ to solve for $r$.
$\frac{s}{tu} = \frac{rtu}{tu}$

Step2: Simplify the right-hand side

The $tu$ terms cancel out on the right side.
$\frac{s}{tu} = r$

Answer:

$\frac{s}{tu}$