2z+12.5-6z=-123.5

Solution for 2z+12.5-6z=-123.5 equation:

Simplifying
2z + 12.5 + -6z = -123.5

Reorder the terms:
12.5 + 2z + -6z = -123.5

Combine like terms: 2z + -6z = -4z
12.5 + -4z = -123.5

Solving
12.5 + -4z = -123.5

Solving for variable 'z'.

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

Add '-12.5' to each side of the equation.
12.5 + -12.5 + -4z = -123.5 + -12.5

Combine like terms: 12.5 + -12.5 = 0.0
0.0 + -4z = -123.5 + -12.5
-4z = -123.5 + -12.5

Combine like terms: -123.5 + -12.5 = -136
-4z = -136

Divide each side by '-4'.
z = 34

Simplifying
z = 34