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(2x-1):3+(6-4x):7=5; x apartine Z
Urgeeen! Da7 coroana!


Răspuns :

(2x-1):3+(6-4x):7=5
aducem la același numitor:
7(2x-1)+3(6-4x) = 105
14x-7+18-12x=105
2x+11=105
2x=94
x=47