Explicație pas cu pas:
x supra 5= y supra 6 = z supra 9=k
x=5k x=5×18 x=90
y=6k y=6×18 y=108
z=9k z=9×18 z=162
x+y+z=360
5k+6k+9k=360
20k=360
k=360÷20
k=18
succes
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Explicație pas cu pas:
x supra 5= y supra 6 = z supra 9=k
x=5k x=5×18 x=90
y=6k y=6×18 y=108
z=9k z=9×18 z=162
x+y+z=360
5k+6k+9k=360
20k=360
k=360÷20
k=18
succes