December 2018 1 16 Report
Zad 2
wylacz wspólny czynnik przed nawias
a)15ab-6b

zad 3
rozwiaz uklady rownan
a) metoda podstawiania
2x-y=4
x+2y=7
b)metoda przeciwnych wspolczynnikow
4x-3y=3
5x+2y=4,5
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