September 2018 1 15 Report
Zapisz w jak najprostszej postaci. Nie czaję tego! a) (a+b)-(2a-b)-(a-2b)=? b) (3x-y+1)-(x-y)+(y-x)=? c) -(kx+ny)-(3kx+2ny)+(5kx-3ny)=? d) (2ab+a+3)-(3ab-a-3)=? Obliczcie to proszę was ale dobrze baba ma sprawdzać;P pracę domową;
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