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Krystian-k
Marysia-m
z+k+m=101
k+2z
m=z+k+5
m=z+2z+5
k=2z
z+k+m=101
m=3z+5
k=2z
z+2z+3z+5=101
podstawiamy za
k 2
m 3z+5
6z=101-5
6z=96
z=96/6
z=16
z=16
k=32
m=16+32+5=53
Marysia zebrała 53
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