(4-z)(3z-1)=0

Solution for (4-z)(3z-1)=0 equation:

Simplifying
(4 + -1z)(3z + -1) = 0

Reorder the terms:
(4 + -1z)(-1 + 3z) = 0

Multiply (4 + -1z) * (-1 + 3z)
(4(-1 + 3z) + -1z * (-1 + 3z)) = 0
((-1 * 4 + 3z * 4) + -1z * (-1 + 3z)) = 0
((-4 + 12z) + -1z * (-1 + 3z)) = 0
(-4 + 12z + (-1 * -1z + 3z * -1z)) = 0
(-4 + 12z + (1z + -3z2)) = 0

Combine like terms: 12z + 1z = 13z
(-4 + 13z + -3z2) = 0

Solving
-4 + 13z + -3z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(-4 + z)(1 + -3z) = 0

Subproblem 1
Set the factor '(-4 + z)' equal to zero and attempt to solve:

Simplifying
-4 + z = 0

Solving
-4 + z = 0

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

Add '4' to each side of the equation.
-4 + 4 + z = 0 + 4

Combine like terms: -4 + 4 = 0
0 + z = 0 + 4
z = 0 + 4

Combine like terms: 0 + 4 = 4
z = 4

Simplifying
z = 4
Subproblem 2
Set the factor '(1 + -3z)' equal to zero and attempt to solve:

Simplifying
1 + -3z = 0

Solving
1 + -3z = 0

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

Add '-1' to each side of the equation.
1 + -1 + -3z = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -3z = 0 + -1
-3z = 0 + -1

Combine like terms: 0 + -1 = -1
-3z = -1

Divide each side by '-3'.
z = 0.3333333333

Simplifying
z = 0.3333333333
Solution
z = {4, 0.3333333333}