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afla valorile necunoscutelor; (12supra 6-7supra6)+2supra6-(e+1)=0

Răspuns :

12/6-7/6+2/6=7/6
7/6-(e+1)=0
e+1=7/6
e+6/6=7/6
e=7/6-6/6
e=1/6
(12/6-7/6)+2/6-(e+1)=0
5/6+2/6-(e+1)=0
7/6-(e+1)=0
e+1=7/6-0
e+1=7/6
e=7/6-1
1=6/6 intreg
e=7/6-6/6
e=1/6