What is the answer is 5p - 8=1 + 5p - 9

Lets solve it

5p-8=1+5p-9

Lets simply if

5p-8=5p-8 / + 8 add 8 both sides

5p=5p

Now lets think about it.

Its no matter what number we substitute to p, because on both sides we have 5p. It means that equation has infinitely many solution.

-8 = 1+5p - 9 - > - 5p=1-9+8 - > - 5p=9-9 - > 5p