Answer:
Given inequality is,
-12 + 5(9p+3) - 36p < 6p - 12
By distributive property,
-12 + 45p + 15 - 36p < 6p - 12
Combine like terms,
3 + 9p < 6p - 12
Additive property of equality,
15 + 9p < 6p
Subtraction property of equality,
9p < 6p - 15
3p < -15
⇒ p < -5
That is, solution of the given inequality is (-∞, 5)