(1)当x大于-5,且小于2/3时为:7-2x;当x小于等于-5时为:-4x-3;当x大于等于2/3时为:4x+3
(2)2x+3大于0时:2x+3=5,x=1;2x+3小于0时;2x+3=-5,x=-4
(3)5x+6大于等于0时:5x+6 =6x-5,得x=11;5x+6小于0时5x+6 =-(6x-5)解得:x=-1/11
(4)x-2大于0时:x=8/13,当x-2小于0时:x=4/13
(1)当x大于-5,且小于2/3时为:7-2x;当x小于等于-5时为:-4x-3;当x大于等于2/3时为:4x+3
(2)2x+3大于0时:2x+3=5,x=1;2x+3小于0时;2x+3=-5,x=-4
(3)5x+6大于等于0时:5x+6 =6x-5,得x=11;5x+6小于0时5x+6 =-(6x-5)解得:x=-1/11
(4)x-2大于0时:x=8/13,当x-2小于0时:x=4/13