Question

解方程 “| |”为绝对值2（|X+1|-2）+3(2|X+1|-1)=7(1-|X+1|)-2分两种情况进行讨论

Answer 1

2（|X+1|-2）+3(2|X+1|-1)=7(1-|X+1|)-2

8|x+1|-7=-7|x+1|+5

15|x+1|=12

|x+1|=4/5

x+1=±4/5

x=-1±4/5

即：x=-9/5,或,-1/5