August 2018 1 13 Report
A.) klamra x=2y=9
klamra y-1=3x

b.) klamra x-y=2
klamra ½x -1 = ¼y

c.) klamra -x-y=2
klamra 2(3x=y) = -20

d.) klamra 4x=3y = 54
klamra ⅓x = 4 (1 = ⅛y )



jak cos to nowa książka matematyka 3 z plusem
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