Question

P-1=5p+3p-8 how do I solve this?

Answer 1

$p-1=5p+3p-8\\ \\p-8p=-8+1\\ \\-7p=-7\ \ /:(-7)\\ \\p=1$

Answer 2

P-1=8p-8
Add 1 to both sides
p=8p-7
Subtract 8p from both sides
-7p=-7
Divide by -7
p=1