(2,51-4z):0,03+9,1=26,1
(2,51-4z):0,03=26,1-9,1
(2,51-4z):0,03=17
2,51-4z=17*0,03
2,51-4z=0,51
-4z=0,51-2,51
-4z=-2
z=-2/-4
z=0,5
(2,51-4z):0,03+9,1=26,1
(2,51-4z):0,03=26,1-9,1
(2,51-4z):0,03=17
2,51-4z=17*0,03
2,51-4z=0,51
-4z=0,51-2,51
-4z=-2
z=-2/-4
z=0,5