Answer:
p = (39x +30 -5q)/13x
Explanation:
16px + 10q + 10px = 78x + 60
Solve for p.
Subtract 10 q from each side.
16px + 10q-10q + 10px = 78x + 60 -10q
16px + 10px = 78x + 60-10q
Combine like terms.
26px = 78x + 60-10q
Factor out p.
p(26x) = 78x + 60-10q
Divide each side by 26x.
p = (78x + 60-10q)/(26x)
Simplify.
p = (39x +30 -5q)/13x