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b)Dorota
c) Helena
d) Maksymilian
= sześć całych i 2/7 d
Tego nie wiem
3x+3a
b)dorota
c)helena
d)maksymilian
17d+d-17d-d+6 2/7d=6 2/7d
0,5+1,5e-2 2/3e+2/3e=0,5-0,5e
a+x+x+a+x+a=3a+3x