几道绝对值的题|x-1|=0 x=_____|b|-|5|=0 b=_____|x-4|+|y-5|=0 x=_____ y=_______|a+b|=5 a+b=_________|a-b|=3 a-b=________ a=________ b=__________

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几道绝对值的题|x-1|=0 x=_____|b|-|5|=0 b=_____|x-4|+|y-5|=0 x=_____ y=_______|a+b|=5 a+b=_________|a-b|=3 a-b=________ a=________ b=__________
几道绝对值的题
|x-1|=0 x=_____
|b|-|5|=0 b=_____
|x-4|+|y-5|=0 x=_____ y=_______
|a+b|=5 a+b=_________
|a-b|=3 a-b=________ a=________ b=__________

几道绝对值的题|x-1|=0 x=_____|b|-|5|=0 b=_____|x-4|+|y-5|=0 x=_____ y=_______|a+b|=5 a+b=_________|a-b|=3 a-b=________ a=________ b=__________
1,x=1
2,b=+-5
3,x=4,y=5
4,a+b=+-5
5,a-b=+-3 a和b有无数个解