0.1^(1-2x)/(x+1) predstavlyaem kk 10^(2x-1)/(x+1)>10^3
tak kak a=10>1 sledovatelno (1-2x)/(x+1)>3
-(x+4)/(x+1)>0
(x+4)/(x+1)<0
x prinadlezht promezhutku ot -4 do -1