August 2018 1 25 Report
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Rozwiąż uklady równań:

3x-y=5
-3x+y=2


5x+2y=-7
-10x-4y=14


1/5x+3/10y=2
-2x-y=-18


1/2x-1/3y=1/4
-2x+1 i 1/3y=1/4


-12x+y=1
4x+1/3y=1


78x-209y=278
3,9x-10,45y=13,9
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