Răspuns:
3=1/2x+3x=>3=7/2x=>x=-7/6
(2-3x)(2x+1)=1. ( se amplifica prima fractie cu 2x+1)
4x+2-6x-3x=1
4x+2-9x=1
2-5x=1
2-1=5x
1=5x
X=1:5
X=0.2
