(z-1)(-3)=1

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

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

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

Reorder the terms for easier multiplication:
-3(-1 + z) = 1
(-1 * -3 + z * -3) = 1
(3 + -3z) = 1

Solving
3 + -3z = 1

Solving for variable 'z'.

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

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

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

Combine like terms: 1 + -3 = -2
-3z = -2

Divide each side by '-3'.
z = 0.6666666667

Simplifying
z = 0.6666666667