Răspunsuri

2014-09-21T15:00:55+03:00
12(x-1)+4x+5=8(2x-1)+8x-5
(dupa ce s-a adus la acelasi numitor)
12x-12+4x+5=16x-8+8x-5
16x-16x+8x=13-12+5
8x=6
x=8/6
x=4/3