若X-3的绝对值与Y+2的绝对值互为相反数,求X+Y+3的值

2025-04-29 13:40:05
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回答1:

解:由题意可得:丨x-3丨+丨y+2丨=0
x-3=0,y+2=0
x=3,y=-2
x+y+3
=3-2+3
=4