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x = 999/100x + 1,5 / - 999/1000x
11000/x = 1,5 / x 1000
x = 1500p[kg]
Odp;Ten słoń waży 1500kg.
pprosze o naj :P
x-0,999x=0,001x=1,5kg
x=1,5:0,001
x=1500kg
odp. słoń waży 1500kg