2,88z-4=7,52
2,88z=11,52
Z=11,52:2,88
Z=4
(3.6z-5)*0.8=7.52
2.88z-4=7.52
2.88z=7.52+4
2.88z=11.52
z=11.52/2.88
z=4
2,88z-4=7,52
2,88z=11,52
Z=11,52:2,88
Z=4
(3.6z-5)*0.8=7.52
2.88z-4=7.52
2.88z=7.52+4
2.88z=11.52
z=11.52/2.88
z=4