4-(1-2a)x=0

Solution for 4-(1-2a)x=0 equation:

Simplifying
4 + -1(1 + -2a) * x = 0

Reorder the terms for easier multiplication:
4 + -1x(1 + -2a) = 0
4 + (1 * -1x + -2a * -1x) = 0

Reorder the terms:
4 + (2ax + -1x) = 0
4 + (2ax + -1x) = 0

Solving
4 + 2ax + -1x = 0

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + 2ax + -4 + -1x = 0 + -4

Reorder the terms:
4 + -4 + 2ax + -1x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 2ax + -1x = 0 + -4
2ax + -1x = 0 + -4

Combine like terms: 0 + -4 = -4
2ax + -1x = -4

Add 'x' to each side of the equation.
2ax + -1x + x = -4 + x

Combine like terms: -1x + x = 0
2ax + 0 = -4 + x
2ax = -4 + x

Divide each side by '2x'.
a = -2x-1 + 0.5

Simplifying
a = -2x-1 + 0.5

Reorder the terms:
a = 0.5 + -2x-1