(s+2)+(s+1)+s=72

Solution for (s+2)+(s+1)+s=72 equation:

Simplifying
(s + 2) + (s + 1) + s = 72

Reorder the terms:
(2 + s) + (s + 1) + s = 72

Remove parenthesis around (2 + s)
2 + s + (s + 1) + s = 72

Reorder the terms:
2 + s + (1 + s) + s = 72

Remove parenthesis around (1 + s)
2 + s + 1 + s + s = 72

Reorder the terms:
2 + 1 + s + s + s = 72

Combine like terms: 2 + 1 = 3
3 + s + s + s = 72

Combine like terms: s + s = 2s
3 + 2s + s = 72

Combine like terms: 2s + s = 3s
3 + 3s = 72

Solving
3 + 3s = 72

Solving for variable 's'.

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

Add '-3' to each side of the equation.
3 + -3 + 3s = 72 + -3

Combine like terms: 3 + -3 = 0
0 + 3s = 72 + -3
3s = 72 + -3

Combine like terms: 72 + -3 = 69
3s = 69

Divide each side by '3'.
s = 23

Simplifying
s = 23