Can you do 56 and 60 in step by step fashion? Thank you. [ATTACH=full]1551[/ATTACH]

56. |x-1| <=1/2 -> abs value means the number or expression inside could be positive or negative so, if positive: x-1<=1/2 x<=1/2+1 x<=1.5 if negative: -(x-1)<=1/2 -x+1<=1/2 -1/2+1<=x x>=1/2 same way you do 60