September 2018 1 27 Report

Proszę o dokończenie tych równań: (układy równan najlepiej

1) x+y =30 x/y= 2/3 (w klamerce)

2)x+15%x =y - 10%y = 95% (x+y) x - 10%x +y+ 15%y= 110% (x+y)(w klamerce)


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