(3+x)-2x=19

Solution for (3+x)-2x=19 equation:

Simplifying
(3 + x) + -2x = 19

Remove parenthesis around (3 + x)
3 + x + -2x = 19

Combine like terms: x + -2x = -1x
3 + -1x = 19

Solving
3 + -1x = 19

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 + -1x = 19 + -3

Combine like terms: 3 + -3 = 0
0 + -1x = 19 + -3
-1x = 19 + -3

Combine like terms: 19 + -3 = 16
-1x = 16

Divide each side by '-1'.
x = -16

Simplifying
x = -16