Adam - x kg
Maciek - x+2
Łukasz - x+2+4 = x +6
x+x+2+x+6 = 128 3
x = 128-83
x = 120 /:3
x= 40 kg
Adam - x =40 kg
Maciek - x+2=40+2= 42 kg
Łukasz - x +6= 40+6 = 46 kg
odp. Adam ważył 40 kg
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Adam - x kg
Maciek - x+2
Łukasz - x+2+4 = x +6
x+x+2+x+6 = 128 3
x = 128-83
x = 120 /:3
x= 40 kg
Adam - x =40 kg
Maciek - x+2=40+2= 42 kg
Łukasz - x +6= 40+6 = 46 kg
odp. Adam ważył 40 kg