September 2018 1 32 Report
Oblicz algebraicznie i graficznie ( + dokladny opis jak zrobic na ukladzie wspolrzednyym ) ( uklady rownan )
a ) 7 x - 2 y =9
2x- y =3


b ) x + 3y = 8
7x - 2 y =10


c) 2x - y = - 1
y = 2x -2
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