September 2018 2 10 Report
Rozwiąż :

-5x+4y-y-7x-9y =
4x+5-x-4+x-3x=
0,5a-2a+9-0,5a-11,5=
-14k+9k-13+k+3+4k=
-3k+2m+5m-7+k-m=
2x-4+3x-2=
x-3y-2x+6y=
2y-5-3y-4-8y+9=

Dam naj, temu kto będzie pierwszy.;))

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