5×(X/8+(X-160/8))=XX=?
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5×(X/8+(X-160/8))=XX=?5×(X/8+(X-160/8))=XX=?5×(X/8+(X-160/8))=XX=?5×(X/8+(X-160/8))=X5x/8+5(x-160)/8
5×(X/8+(X-160/8))=XX=?
5×(X/8+(X-160/8))=X
X=?
5×(X/8+(X-160/8))=XX=?
5×(X/8+(X-160/8))=X
5x/8+5(x-160)/8=x
5x+5x-800=8x
18x=800
x=400/9
5×(X/8+(X-160/8))=XX=?
解方程2xX(7--2x)+5xX(8--x)=3xX(5--3x)--39
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
8x-5=3xx是X不是乘号
解方程1/(xx+x)+1/(xx+3x+2)+1/(xx+5x+6)+1/(xx+7x+12)+1/(xx+9x+20)=5/(xx+11x-708)
1,2,3,4,5,6,7,8,9,九个数字XX除X=XX除X=XX除X
2分之8x-18=-5xx等于多少?
求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X X
解方程:3x/(xx-1)+(xx-1)/3x=5/2
x+8x=5.4怎么算xx
已知:3x=xx-x+1求(xxxx+xx+1)分之xx
7/(XX+X)+1/(xx-x) =6/(xx-1)
解分式方程7/(XX+X)+1/(xx-x) =6/(xx-1)
7/(XX+X)+1/(xx-x) =6/(xx-1)
7/xx+x+1/xx-1=2/xx-x
如下9*9宫图如何填x x x 1 x x x 2 9x x 5 x x x x x 4x 6 8 x x x x x xx x x 7 x x 5 x xx 2 x x 6 x x 8 xx x 3 x x 9 x x xx x x x 5 x 1 6 x 4 x x x 3 x x x x 7 x x x x 2 x x x
在9x9的方格中,把1——9这9个数字填入方格中,每行每列都填这9个数,横竖都不能重复,8 X X X X X X X X X X 3 6 X X X X X X 7 X X 9 X 2 X XX 5 X X X 7 X X XX X X X 4 5 7 X XX X X 1 X X X 3 XX X 1 X X X X 6 8X X 8 5 X X X 1 XX
题目是 (1) XX*X=XX X*X=XX X为未知数分别将1到9的9个数填入不能重复 *为乘号 (2)XX/X=X X/X=XX/ X X为