Rozwiąż układ równań.
x-2y=-4
0,5x+y=2
x - 2y = -4
0,5x + y = 2/ *2
x + 2y = 2
2x = 2 /2
x = 1
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x - 2y = -4
0,5x + y = 2/ *2
x - 2y = -4
x + 2y = 2
2x = 2 /2
x = 1