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-9-5=-14
2*0-3*1/3=
0-1=-1
podstawiamy:
3*(-3)-5 = -9-5 = -14
2m-3n dla m= 0 i n= ⅓
2*0-3*1/3 = 0-1 = -1
3*(-3)-5
-9-5
-14
2m-3n
2*0-3*1/3
-1