x-(1.4-x)=83.6

Solution for x-(1.4-x)=83.6 equation:

Simplifying
x + -1(1.4 + -1x) = 83.6
x + (1.4 * -1 + -1x * -1) = 83.6
x + (-1.4 + 1x) = 83.6

Reorder the terms:
-1.4 + x + 1x = 83.6

Combine like terms: x + 1x = 2x
-1.4 + 2x = 83.6

Solving
-1.4 + 2x = 83.6

Solving for variable 'x'.

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

Add '1.4' to each side of the equation.
-1.4 + 1.4 + 2x = 83.6 + 1.4

Combine like terms: -1.4 + 1.4 = 0.0
0.0 + 2x = 83.6 + 1.4
2x = 83.6 + 1.4

Combine like terms: 83.6 + 1.4 = 85
2x = 85

Divide each side by '2'.
x = 42.5

Simplifying
x = 42.5