log0,2(2x-10)/(x+11)>=log0,2(1)
(2x-10)/(x+11)<=1
(2x-10-x-11)/(x+11)<=0
(x-21)/(x+11)<=0
(-11;21]
(2x-10)/(x+11)>0
(x-5)/(x+11)>0
x>5
x<-11
отв. (5;21]
log0,2(2x-10)/(x+11)>=log0,2(1)
(2x-10)/(x+11)<=1
(2x-10-x-11)/(x+11)<=0
(x-21)/(x+11)<=0
(-11;21]
(2x-10)/(x+11)>0
(x-5)/(x+11)>0
x>5
x<-11
отв. (5;21]