x+(x+3)+x+(x+3)=24

Solution for x+(x+3)+x+(x+3)=24 equation:

Simplifying
x + (x + 3) + x + (x + 3) = 24

Reorder the terms:
x + (3 + x) + x + (x + 3) = 24

Remove parenthesis around (3 + x)
x + 3 + x + x + (x + 3) = 24

Reorder the terms:
x + 3 + x + x + (3 + x) = 24

Remove parenthesis around (3 + x)
x + 3 + x + x + 3 + x = 24

Reorder the terms:
3 + 3 + x + x + x + x = 24

Combine like terms: 3 + 3 = 6
6 + x + x + x + x = 24

Combine like terms: x + x = 2x
6 + 2x + x + x = 24

Combine like terms: 2x + x = 3x
6 + 3x + x = 24

Combine like terms: 3x + x = 4x
6 + 4x = 24

Solving
6 + 4x = 24

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 4x = 24 + -6

Combine like terms: 6 + -6 = 0
0 + 4x = 24 + -6
4x = 24 + -6

Combine like terms: 24 + -6 = 18
4x = 18

Divide each side by '4'.
x = 4.5

Simplifying
x = 4.5