Equation
(1/4)p + (2/3)p + (4/9) = 0 → multiply both sides by the common denominator 36
36[(1/4)p + (2/3)p + (4/9)] = 36(0) →
9p + 24p + 16 = 0 → 33p = - 16 → p = - 16/33
return