x+4+2x-1=0

Solution for x+4+2x-1=0 equation:

Simplifying
x + 4 + 2x + -1 = 0

Reorder the terms:
4 + -1 + x + 2x = 0

Combine like terms: 4 + -1 = 3
3 + x + 2x = 0

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

Solving
3 + 3x = 0

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 3x = 0 + -3

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

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

Divide each side by '3'.
x = -1

Simplifying
x = -1