(40+2x)(90+2x)×72%=3600
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(40+2x)(90+2x)×72%=3600
(40+2x)(90+2x)×72%=3600
(40+2x)(90+2x)×72%=3600
300字读后感 2篇 俄把格式说一下吧:《xxxx》(写题目)主要内容:x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x(写那篇文章的主要内容)思考分析:x x x
(x-1/3x-x+1/x)×x/x²-1 其中x=根号2-2 先化简
(3x/x-1-x/x+1)×x²-1/x 其中x=根号2-2 先化简
90X40=72%x(90+2x)x(40+2x)求解
90X40=72%x(90+2x)x(40+2x)求解
解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1
请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360
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3x(x+2)=5(x+2)))
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x(x+2)+x(x-3)
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