1.3-0.4z+z=-1.2

Solution for 1.3-0.4z+z=-1.2 equation:

Simplifying
1.3 + -0.4z + z = -1.2

Combine like terms: -0.4z + z = 0.6z
1.3 + 0.6z = -1.2

Solving
1.3 + 0.6z = -1.2

Solving for variable 'z'.

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

Add '-1.3' to each side of the equation.
1.3 + -1.3 + 0.6z = -1.2 + -1.3

Combine like terms: 1.3 + -1.3 = 0.0
0.0 + 0.6z = -1.2 + -1.3
0.6z = -1.2 + -1.3

Combine like terms: -1.2 + -1.3 = -2.5
0.6z = -2.5

Divide each side by '0.6'.
z = -4.166666667

Simplifying
z = -4.166666667