September 2018 1 50 Report
Rozwiąż układy równań metodą podstawiania: a) 0,4x+0,3y = 1,4
0,1x +3y = 2,3

b) 0,5x -0,75y = 0
2/3x +1,25y=9

c) 3x +4y =1i 2/3
6x + 3 y = 1,25

daje naj. :)
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