-1(z-6)=-20

Solution for -1(z-6)=-20 equation:

Simplifying
-1(z + -6) = -20

Reorder the terms:
-1(-6 + z) = -20
(-6 * -1 + z * -1) = -20
(6 + -1z) = -20

Solving
6 + -1z = -20

Solving for variable 'z'.

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

Add '-6' to each side of the equation.
6 + -6 + -1z = -20 + -6

Combine like terms: 6 + -6 = 0
0 + -1z = -20 + -6
-1z = -20 + -6

Combine like terms: -20 + -6 = -26
-1z = -26

Divide each side by '-1'.
z = 26

Simplifying
z = 26