December 2018 1 14 Report
Wykonaj metodą przeciwnych współczynników:
a) 3x+3y=6
x-y=3
b)3x+2y=6
2x+y=4
c)3x+2y=6
x-y=4
d)2x+2y=6
x-y=4
daje naj. na dziś

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