p - 1 = 5p + 3p - 8
We're essentially just trying to get "p" isolated, or by itself.
So, we must subtract 5p from both sides.
p - 1 - 5p = 3p - 8
Then, you subtract 3p from both sides.
p - 1 - 5p - 3p = -8
You then add 1 to both sides.
p - 5p - 3p = -8 + 1
Simplify.
-4p - 3p = -7
Simplify.
-7p = -7
Divide both sides b -7.
p = 1
~Hope I helped!~