m+s=85,6
m=s-7,5
s-7,5+s=85,6
2s=93,1
s=46,55zł
m=39,05zł
x=kwota sylwi
x-7,50zł=kwota marty
x+x-7,50=8560
2x=85,60+7,50
2x=93,10
x=93,10:2
x=46,55 zł ma sylwia i 46,55-7,50=39,05zł ma marta
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m+s=85,6
m=s-7,5
s-7,5+s=85,6
2s=93,1
s=46,55zł
m=39,05zł
x=kwota sylwi
x-7,50zł=kwota marty
x+x-7,50=8560
2x=85,60+7,50
2x=93,10
x=93,10:2
x=46,55 zł ma sylwia i 46,55-7,50=39,05zł ma marta