(-1+x)+x+(x+1)=24

Solution for (-1+x)+x+(x+1)=24 equation:

Simplifying
(-1 + x) + x + (x + 1) = 24

Remove parenthesis around (-1 + x)
-1 + x + x + (x + 1) = 24

Reorder the terms:
-1 + x + x + (1 + x) = 24

Remove parenthesis around (1 + x)
-1 + x + x + 1 + x = 24

Reorder the terms:
-1 + 1 + x + x + x = 24

Combine like terms: -1 + 1 = 0
0 + x + x + x = 24
x + x + x = 24

Combine like terms: x + x = 2x
2x + x = 24

Combine like terms: 2x + x = 3x
3x = 24

Solving
3x = 24

Solving for variable 'x'.

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

Divide each side by '3'.
x = 8

Simplifying
x = 8