作业帮x(1+30%)+(200-x)(1+20%)x90%-200=27.7
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/16 03:19:37
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x(1+30%)+(200-x)(1+20%)x90%-200=27.7
x(1+30%)+(200-x)(1+20%)x90%-200=27.7
x(1+30%)+(200-x)(1+20%)x90%-200=27.7
90%前面的哪个是乘号还是x,如果是乘号的话
1.3x+1.2*0.9*（200-x）=227.7
0.22x=11.7
x=53.18
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填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
七年级下册政治复习提纲(山东人民出版社)第五单元是 青春的脚步 青春的气息别弄错了啊!格式：X X X X X X X X X 1、X X X X X X X X X X.2、X X X X X X X X X.3、X X X X X X X X X X X.
分解因式----（X*X-X)(X*X-X-2)+1
】x(x+1)+x^2(x-1)
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{2X+1}+{X}
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x^2-1/x
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