September 2018 1 28 Report

zad1.rozwiąż metoda przeciwnych wspólczynnikow

a) x-3y=4

5x+3y=-1

b) 2x+5y=25

4x=3y=15

c) 6x-7y=40

5y-2x=-8

d) 7x-3y+1=0

4x-5y+17=0

zadanie.2

a) 9x- 1/3y =-12

3x+y=6


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