x-2>1。3x+1<8

x-2&gt;1。3x+1&lt;8
2025-05-18 02:15:32
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回答(1):

解:x-2>1。3x+1<8
(1.) x-2>1,x>1+2,x>3
(2.) 3x+1<8,3x<8-1,,x<7/3