x+x+(2x-3)+(2x+3)=42

Solution for x+x+(2x-3)+(2x+3)=42 equation:

Simplifying
x + x + (2x + -3) + (2x + 3) = 42

Reorder the terms:
x + x + (-3 + 2x) + (2x + 3) = 42

Remove parenthesis around (-3 + 2x)
x + x + -3 + 2x + (2x + 3) = 42

Reorder the terms:
x + x + -3 + 2x + (3 + 2x) = 42

Remove parenthesis around (3 + 2x)
x + x + -3 + 2x + 3 + 2x = 42

Reorder the terms:
-3 + 3 + x + x + 2x + 2x = 42

Combine like terms: -3 + 3 = 0
0 + x + x + 2x + 2x = 42
x + x + 2x + 2x = 42

Combine like terms: x + x = 2x
2x + 2x + 2x = 42

Combine like terms: 2x + 2x = 4x
4x + 2x = 42

Combine like terms: 4x + 2x = 6x
6x = 42

Solving
6x = 42

Solving for variable 'x'.

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

Divide each side by '6'.
x = 7

Simplifying
x = 7