Answer:
p = -q/(3 q - 4)
Step-by-step explanation:
Solve for p:
4 p (q - 1) + q (1 - p) = 0
Expand and collect in terms of p:
q + p (3 q - 4) = 0
Subtract q from both sides:
p (3 q - 4) = -q
Divide both sides by 3 q - 4:
Answer: p = -q/(3 q - 4)