November 2018 1 49 Report
ROZWIĄŻ UKŁAD RÓWNAŃ:
a) x=2x + 3y -1
5= x + 4y

b) x + 6 = 3x + y
4 = x - 2y + 5

c) 0 = 5x - y
4 + y = -2 -x

d) x - 3y = 1 - x - y
2x + y = -1
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