F(x)=[3-x]

Solution for F(x)=[3-x] equation:

Simplifying
F(x) = [3 + -1x]

Multiply F * x
xF = [3 + -1x]

Remove brackets around [3 + -1x]
xF = 3 + -1x

Solving
xF = 3 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
x + xF = 3 + -1x + x

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

Reorder the terms:
-3 + x + xF = 3 + -3

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

The solution to this equation could not be determined.