August 2018 1 39 Report
Rozwiąż układ równan.
a) 0,2(x+2y) - 0,3 (2x-y) = 3,5
2(x+y)-(x-2) = 2y + 2

b) y-x (2x+1) = -2(x-1)2 + 3
(y-1)2 + 2x = y(y+1) +5
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