-111=5(8+5p)-1

Solution for -111=5(8+5p)-1 equation:

Simplifying
-111 = 5(8 + 5p) + -1
-111 = (8 * 5 + 5p * 5) + -1
-111 = (40 + 25p) + -1

Reorder the terms:
-111 = 40 + -1 + 25p

Combine like terms: 40 + -1 = 39
-111 = 39 + 25p

Solving
-111 = 39 + 25p

Solving for variable 'p'.

Move all terms containing p to the left, all other terms to the right.

Add '-25p' to each side of the equation.
-111 + -25p = 39 + 25p + -25p

Combine like terms: 25p + -25p = 0
-111 + -25p = 39 + 0
-111 + -25p = 39

Add '111' to each side of the equation.
-111 + 111 + -25p = 39 + 111

Combine like terms: -111 + 111 = 0
0 + -25p = 39 + 111
-25p = 39 + 111

Combine like terms: 39 + 111 = 150
-25p = 150

Divide each side by '-25'.
p = -6

Simplifying
p = -6