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URRRRRRGGGGGGGGGGGEEEEEEENNNNNNNNTTTTTTT

URRRRRRGGGGGGGGGGGEEEEEEENNNNNNNNTTTTTTT class=

Răspuns :

5x/9+(2/3)*4x/9+4=x

5x/9+8x/27+4=x
15x/27+8x/27+4=x
23x/27+4=x
4=x-23x/27
4=4x/27
1=x/27
x=27, cerinta

verificare
15+(2/3)* 12+4=27
15+8+4=27
15+12=27, problema e bine rezolvata