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y=x-8
3/4x=y
3/4x=x-8
3/4x=y
1/4x=8
3/4x=y
x=32
3/4*32=y
x=32
y=24
x=32
Spr
x-y=8
32-24=8
8=8
32+24=56
Cała droga z domu do jeziora wynosi 56 kilometrów