|x+2|+|y-3|=0则x-y=多少 1+(-2)+3+(-4)+5+(-6)+.+2011+(-2012)上面是两道题请仔细回答,
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![|x+2|+|y-3|=0则x-y=多少 1+(-2)+3+(-4)+5+(-6)+.+2011+(-2012)上面是两道题请仔细回答,](/uploads/image/z/12612621-21-1.jpg?t=%7Cx%2B2%7C%2B%7Cy-3%7C%3D0%E5%88%99x-y%3D%E5%A4%9A%E5%B0%91+1%2B%EF%BC%88-2%EF%BC%89%2B3%2B%EF%BC%88-4%EF%BC%89%2B5%2B%EF%BC%88-6%EF%BC%89%2B.%2B2011%2B%EF%BC%88-2012%EF%BC%89%E4%B8%8A%E9%9D%A2%E6%98%AF%E4%B8%A4%E9%81%93%E9%A2%98%E8%AF%B7%E4%BB%94%E7%BB%86%E5%9B%9E%E7%AD%94%EF%BC%8C)
|x+2|+|y-3|=0则x-y=多少 1+(-2)+3+(-4)+5+(-6)+.+2011+(-2012)上面是两道题请仔细回答,
|x+2|+|y-3|=0则x-y=多少 1+(-2)+3+(-4)+5+(-6)+.+2011+(-2012)
上面是两道题
请仔细回答,
|x+2|+|y-3|=0则x-y=多少 1+(-2)+3+(-4)+5+(-6)+.+2011+(-2012)上面是两道题请仔细回答,
+5或-5
-1006
1
|x+2|+|y-3|=0
x+2=0 x=-2
y-3=0 y=3
则x-y=-2-3=-5
1+(-2)+3+(-4)+5+(-6)+....+2011+(-2012
=1+(3-2)+(5-4)+...+(2011-2010)-2012
=1+1x(2012-2)÷2-2012
=1+1005-2012
=-1006f(1...
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|x+2|+|y-3|=0
x+2=0 x=-2
y-3=0 y=3
则x-y=-2-3=-5
1+(-2)+3+(-4)+5+(-6)+....+2011+(-2012
=1+(3-2)+(5-4)+...+(2011-2010)-2012
=1+1x(2012-2)÷2-2012
=1+1005-2012
=-1006
收起
1.x-y=-5 , x+y=1
那个长的=-2012/2=-1006