(x-3)/2+(2x-4)/3+(3x-5)/4+……+(8x-10)/9=(3x-1)/2+(4x-2)/3+……+(10x-8)/9 x=

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(x-3)/2+(2x-4)/3+(3x-5)/4+……+(8x-10)/9=(3x-1)/2+(4x-2)/3+……+(10x-8)/9x=(x-3)/2+(2x-4)/3+(3x-5)/4+……+

(x-3)/2+(2x-4)/3+(3x-5)/4+……+(8x-10)/9=(3x-1)/2+(4x-2)/3+……+(10x-8)/9 x=
(x-3)/2+(2x-4)/3+(3x-5)/4+……+(8x-10)/9=(3x-1)/2+(4x-2)/3+……+(10x-8)/9 x=

(x-3)/2+(2x-4)/3+(3x-5)/4+……+(8x-10)/9=(3x-1)/2+(4x-2)/3+……+(10x-8)/9 x=
(-2x-2)/2+(-2x-2)/3+(-2x-2)/4+…+(-2x-2)/9=0
(-2x-2)*(1/2+1/3+1/4+1/5+…+1/9)=0
-2x-2=0
-2x=2
x=-1

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 3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/(x-2)-x/(x+2)÷2x/(x²-4)化简 *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || (x+2)(x-2)+16 (x-1)(x-2)+3x(x+3)-4(x+2)(x-3)(x+2)(x-2)+16 (x-1)(x-2)+3x(x+3)-4(x+2)(x-3) (x-1)^3(x+1)(x-2)/(x+4) (x+1)(x+2)(x+3)(x+4)+1(x+1)(x-2)(x+3)(x-4)+25 计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1 解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3) 【计算(过程)】-x^2*(-x)^3+3x^3*(-x^2)-4(-x)*(-x)^4 [(3x/x-2)-(x/x+2)]/(x/x^2-4) 请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360 (X-3分之x-1-x分之x-4)除以x的平方+3x分之(x+3)(x-2),其中(x-1)(x-2)=0 解下列方程!就三道!解下列方程.1、x/x-2 - 1-x²/x²-5x = 2x/x-3(x/x-2 - 1-x²不是一起的!)2、5x/x²+x-6 - 5-2x/x²-x-12=7x-10/x²-6x+8(5x/x²+x-6 - 5-2x不是一起的!)3、x-4/x-5 + x-8/x-9=x-7/x- x+5/x+1-3x-3/x+5=8x+28/x^2+4X-5-2(x+5)/(x+1)-(3x-3)/(x+5)=(8x+28)/(x^2+4X-5)-2 (1)(2x/x-1)-(x-1/x)=1 (2)(x^2-4x/x^2-1)+1=2x/x+1 (3)(x+4/x^2+2x)-(1/x+2)=(2/x)+1 (1)(2x/x-1)-(x-1/x)=1 (2)(x^2-4x/x^2-1)+1=2x/x+1 (3)(x+4/x^2+2x)-(1/x+2)=(2/x)+1 2x-6/(4-4x+x^2)*(x^2+x-6)/(12-4x)/(x+3) 计算:2x-6/4-4x+x^2除以(x+3)乘以x^2+x-6/x+3