3+x+(x-4)=

Solution for 3+x+(x-4)= equation:

Simplifying
3 + x + (x + -4) = 0

Reorder the terms:
3 + x + (-4 + x) = 0

Remove parenthesis around (-4 + x)
3 + x + -4 + x = 0

Reorder the terms:
3 + -4 + x + x = 0

Combine like terms: 3 + -4 = -1
-1 + x + x = 0

Combine like terms: x + x = 2x
-1 + 2x = 0

Solving
-1 + 2x = 0

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + 2x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 2x = 0 + 1
2x = 0 + 1

Combine like terms: 0 + 1 = 1
2x = 1

Divide each side by '2'.
x = 0.5

Simplifying
x = 0.5