((1.0-x)+(2.0-3x)+2x)=2.2atm

Solution for ((1.0-x)+(2.0-3x)+2x)=2.2atm equation:

Simplifying
((1.0 + -1x) + (2.0 + -3x) + 2x) = 2.2atm

Remove parenthesis around (1.0 + -1x)
(1.0 + -1x + (2.0 + -3x) + 2x) = 2.2atm

Remove parenthesis around (2.0 + -3x)
(1.0 + -1x + 2.0 + -3x + 2x) = 2.2atm

Reorder the terms:
(1.0 + 2.0 + -1x + -3x + 2x) = 2.2atm

Combine like terms: 1.0 + 2.0 = 3
(3 + -1x + -3x + 2x) = 2.2atm

Combine like terms: -1x + -3x = -4x
(3 + -4x + 2x) = 2.2atm

Combine like terms: -4x + 2x = -2x
(3 + -2x) = 2.2atm

Remove parenthesis around (3 + -2x)
3 + -2x = 2.2atm

Solving
3 + -2x = 2.2amt

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 + -2x = -3 + 2.2amt

Combine like terms: 3 + -3 = 0
0 + -2x = -3 + 2.2amt
-2x = -3 + 2.2amt

Divide each side by '-2'.
x = 1.5 + -1.1amt

Simplifying
x = 1.5 + -1.1amt