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z+12=2z-2
-z=-14 I*(-1)
z=14
spr. L= 1/2 14 +6=7+6=13
P= 14-1=13
L=P
1/2z-z=-1-6
-1/2z=-7/:(-1/2)
z=14
;)
1/2z-z=-6-1
1/2=-7/:1/2
z=-3,5
na pewno mam dobrze!;))