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2014-09-26T10:08:38+03:00
2x+1/3-x-2/4=5x/2 aducem la acelasi numitor adica 12
4(2x+1)-3(x-2)=30x
8x+4-3x+6=30x
10=30x-5x
10=25x
x=10/25
x=2/5