(1—1/4)x(1+2/9)xX=360—X+1/4X
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(1—1/4)x(1+2/9)xX=360—X+1/4X(1—1/4)x(1+2/9)xX=360—X+1/4X(1—1/4)x(1+2/9)xX=360—X+1/4X
(1—1/4)x(1+2/9)xX=360—X+1/4X
(1—1/4)x(1+2/9)xX=360—X+1/4X
(1—1/4)x(1+2/9)xX=360—X+1/4X
7/xx+x+1/xx-1=2/xx-x
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)
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
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-7
x/xx+x+1=1/4 求xx/xxxx+xx+1
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)
1,2,3,4,5,6,7,8,9,九个数字XX除X=XX除X=XX除X
x表示1-9的数,x13/xx=xx,1748/xx=xx,x不能重复
解方程:3x/(xx-1)+(xx-1)/3x=5/2
XXX*XX=XX*XX=3624,X内填写1-9,数字不能重复
(1—1/4)x(1+2/9)xX=360—X+1/4X
xx(x-1)/2=105X=?
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
若xx-4x+1=0,求①x+1/4的值;②xx+1/xx的值
已知f(x)=3x-2xx+kx-4能被x+1整除,求k的值xx为x的平方