已知实数x满足(3x-1)/2-7/3>=x-(5+2x)/3化简/1-x/-/x+2/

Question

已知实数x满足(3x-1)/2-7/3>=x-(5+2x)/3化简/1-x/-/x+2/

Answer 1

解不等式
(3x-1)/2-7/3>=x-(5+2x)/3
得
x≥1,
则|1-x|-|x+2|=x-1-（x+2）=x-1-x-2=-3．
故答案是-3．