Twice a number is no less than 10 units from negative one

Answer 1

2x >/= -1+/-10 = -11 or 9

2x = -11 or 9 or 2x>9 or 2x<-11

x = -5.5 or 4.5 or x<-5.5 or > 4.5

"not less than" means "greater than or equal to"