December 2018 1 11 Report
Rozwiaz metodą przeciwnych współczynników:
A) 2(x-2)+4(y-3)=-2
X-y=-2

B) 2(8y-x)-(x+y)=-15
3(x+y)-4(x-y)=-3

C)1\3x+1\2y=3
1\6x+1\2y=2 1\2
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