-3.5
Step-by-step explanation:
3x + -5 + 19 + -1x + 2x = 0
Reorder the terms:
-5 + 19 + 3x + -1x + 2x = 0
Combine like terms: -5 + 19 = 14
14 + 3x + -1x + 2x = 0
Combine like terms: 3x + -1x = 2x
14 + 2x + 2x = 0
Combine like terms: 2x + 2x = 4x
14 + 4x = 0
Solving
14 + 4x = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-14' to each side of the equation.
14 + -14 + 4x = 0 + -14
Combine like terms: 14 + -14 = 0
0 + 4x = 0 + -14
4x = 0 + -14
Combine like terms: 0 + -14 = -14
4x = -14
Divide each side by '4'.
x = -3.5
Simplifying
x = -3.5
I hope i helped, thanks UvU