Final answer:
The simplified algebraic expression for the given model is -x/(x-1).
Step-by-step explanation:
The simplified algebraic expression for the given model is -x/(x-1).
To simplify the expression, we can start by multiplying each term by -1. This will change the signs and bring the x-1 term to the denominator.
So, the final simplified expression is -x/(x-1).