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(-30.1)+12.5+30.1+(+2/1)+(-4/3)+(-7.25)18+(-32)+(-16)+26若|a+1|+|b-1|=0,则2+b=()
题目详情
(-30.1)+12.5+30.1+(+2/1)+(-4/3)+(-7.25) 18+(-32)+(-16)+26
若|a+1|+|b-1|=0,则2+b=()
若|a+1|+|b-1|=0,则2+b=()
▼优质解答
答案和解析
(-30.1)+12.5+30.1+(+2/1)+(-4/3)+(-7.25)
=(-30.1+30.1)+(12.5+2/1)-(4/3+7.25)
=13-8
=5
18+(-32)+(-16)+26
=(18+26)-(32+16)
=44-48
=-4
=(-30.1+30.1)+(12.5+2/1)-(4/3+7.25)
=13-8
=5
18+(-32)+(-16)+26
=(18+26)-(32+16)
=44-48
=-4
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