ОДЗ 
0} \atop {x+1>0}} \right. <=> \left \{ {3x>1} \atop {x>-1}} \right. <=> \left \{ {x>\frac{1}{3} \atop {x>-1}} \right. " alt="\left \{ {3x-1>0} \atop {x+1>0}} \right. <=> \left \{ {3x>1} \atop {x>-1}} \right. <=> \left \{ {x>\frac{1}{3} \atop {x>-1}} \right. " align="absmiddle" class="latex-formula">
\frac{1}{3}" alt="x>\frac{1}{3}" align="absmiddle" class="latex-formula">
ТАК как 0,2<1 то</p>
3x-1>x+1
2x>2
x>1