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a fost răspuns

fie x/Z-Y/Z=5 si x-y=20. determina z

Răspuns :

AdeeDmr
x/z - y/z=5
x-y=5z
20=5z
z=4
Pepenecatalin
x/z-y/z=5
x-y=5z
20=5z
z=4