12-6=z

Solution for 12-6=z equation:

Simplifying
12 + -6 = z

Combine like terms: 12 + -6 = 6
6 = z

Solving
6 = z

Solving for variable 'z'.

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

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

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

Add '-6' to each side of the equation.
6 + -6 + -1z = 0 + -6

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

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

Divide each side by '-1'.
z = 6

Simplifying
z = 6