3(p+1)2=81

Solution for 3(p+1)2=81 equation:

Simplifying
3(p + 1) * 2 = 81

Reorder the terms:
3(1 + p) * 2 = 81

Reorder the terms for easier multiplication:
3 * 2(1 + p) = 81

Multiply 3 * 2
6(1 + p) = 81
(1 * 6 + p * 6) = 81
(6 + 6p) = 81

Solving
6 + 6p = 81

Solving for variable 'p'.

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

Add '-6' to each side of the equation.
6 + -6 + 6p = 81 + -6

Combine like terms: 6 + -6 = 0
0 + 6p = 81 + -6
6p = 81 + -6

Combine like terms: 81 + -6 = 75
6p = 75

Divide each side by '6'.
p = 12.5

Simplifying
p = 12.5