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cum se cakculeaza 7/9 - x /3=1/10

Răspuns :

7/9 - x /3=1/9

x/3=7/9 -1/9

x/3=6/9

x=6/9 ×3/1

x=6×1 totul supra /3×1

x=6/3 (simplificat cu 3)

x=2/1

x=2