October 2018 1 95 Report
Rozwiąż układ równań. a)3x-4y+6=x-3y+7
4-x-y=2x-2y+1
(klamerka)
b)2(x-2)+4(y-3)=-2
x-y=-2
(klamerka)
c)2x+3y=15
3(x-2)-(4-y)=2
(klamerka)
d)x-1/2-y=-2
x-y+1/5=2
(klamerka)


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