Answer:
u=[tex]\frac{s}{r} - \frac{t}{r} + 8[/tex]
Step-by-step explanation:
Multiply each term by u-8 and simplify.
s - t = ru - 8r
Rewrite the equation as ru - 8r + s - t
add 8r to both sides of the equation.
ru + s - t + 8r
Divide each term by r and simplify
