podaj 3 pary liczb ktore sa rozwiazaniem rownan a) x-1 =2y b) 0,5x=y+2 c)7x-y=10 d)6x+2y=x-5 e)x+y=15(x-y) f)1/2x-1/3y=1/6
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a)x=5, y=2
x=7, y=3
x=9, y=4
b)x=6, y=1
x=7, y=1,5
x=8, y=2
c)x=2 , y=4
x=3 , y=11
x=4 , y=18