February 2019 0 33 Report
Jeden z poniższych układów równan ma takie samo rozwiazanie jak uklad zapisany w ramce. Który ?
Ramka:
x+y=5
x+2y=6

A. x-y=3 B. x+2y-6=0 C. x+2y/2=3 D. x-y=5
2x+y=10 2x+y=10 10y=2(x+1) 5y-x=1
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