Răspunsuri

2014-09-29T22:48:30+03:00
Xy=36+yx
xy-yx=36
10x+y-10y-x=36 =>
9x-9y=36/9
x-y=4
x=9 si y =5
x=8 si y =4
x=7 si y= 3
x=6 si y = 2
x=5 si y =1
x= 4 si y = 0
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