Question

p=80-Q/2
turn the equation around so that Q is a function of P (that is, add q/2 to both sides and subtract p from both, then solve for q).

Answer 1

You've got the instructions, follow them!

\[p = 80 - \frac{q}{2}\]Add \(q/2\) to both sides:
\[p+\frac{q}{2} = 80 - \frac{q}{2} + \frac{q}2\]\[p+\frac{q}{2} = 80\]You do the rest...

Answer 2

p+q=80/2?

Answer 3

@whpalmer4