.91-0.2z=1.23-0.62

Solution for .91-0.2z=1.23-0.62 equation:

Simplifying
0.91 + -0.2z = 1.23 + -0.62

Combine like terms: 1.23 + -0.62 = 0.61
0.91 + -0.2z = 0.61

Solving
0.91 + -0.2z = 0.61

Solving for variable 'z'.

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

Add '-0.91' to each side of the equation.
0.91 + -0.91 + -0.2z = 0.61 + -0.91

Combine like terms: 0.91 + -0.91 = 0.00
0.00 + -0.2z = 0.61 + -0.91
-0.2z = 0.61 + -0.91

Combine like terms: 0.61 + -0.91 = -0.3
-0.2z = -0.3

Divide each side by '-0.2'.
z = 1.5

Simplifying
z = 1.5