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rezolvati ecuatia 0,3X+2,4=1,(2)x+0,(5)

Răspuns :

0,3x+2,4=1,(2)x+0,(5)
1,(2)=(12-1)/9=11/9
0,(5)=5/9
3x/10+24/10=11x/9+5/9
27x+216=110x+50
83x=166
x=166/83
x=2