November 2018 1 14 Report
Rozwiąż układy równań metodą podstawiania:



D) 3x-1=y-2
4x-3=-2(y-2)


E) 1/2(x-1)+y=-2 1/2
x-7=1-y

F) x-y/3 - x+y/2 = -1/2
x+y = 3

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