Răspuns :
x+y+z=96
x+y=74 y=74-x
y+z=46 z=46-y z=46-74+x z=-28+x
x+74-x-28+x=96
x=50
y=74-50 y=24
z=46-24 z=22
22+24+50=96
x+y=74 y=74-x
y+z=46 z=46-y z=46-74+x z=-28+x
x+74-x-28+x=96
x=50
y=74-50 y=24
z=46-24 z=22
22+24+50=96
ga+ra+gi=96
ga+ra=74
ra+gi=46
-----------------
ga +46=96
ga=50
gi=96-74=22
ra=74-50=24
---------------------
verif: 24+22+50= 96 ok
ga+ra=74
ra+gi=46
-----------------
ga +46=96
ga=50
gi=96-74=22
ra=74-50=24
---------------------
verif: 24+22+50= 96 ok