Question

p-4=-9+p i don't know how to determine whether its an infinite solution, or n solution.

Answer 1

Subtract P from both sides and be left with -4 = -9, which means no solutions.

Answer 2

♥ Solve:
Subtract "P" from both sides.
Answer:
-4 = -9
Which means
No solutions. 
Final answer: No solutions.