3(x+1)-1/3(x-1)=4(x-1)-7/2(x+1),求x

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3(x+1)-1/3(x-1)=4(x-1)-7/2(x+1),求x
3(x+1)-1/3(x-1)=4(x-1)-7/2(x+1),求x

3(x+1)-1/3(x-1)=4(x-1)-7/2(x+1),求x
x=2/5

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 *-----------------------------------------------*| 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(x+1)+x平方(x-1)]+(-3x) (x-1)^3(x+1)(x-2)/(x+4) (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)(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 3/x-1=4/x 6/x+1=x+5/x(x+1) 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 (2/1-x)-(x/3-x)+(2x-1/x²-4x+3)=1 (x-1)(x-2)+(x-2)(x+3)-2(x-3)(x-4)>=(大于等于)-4 解方程:x(2X-3)+2x(x-1)=4x(x-2)+9 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- (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 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 (x-1/3x-x+1/x)×x/x²-1 其中x=根号2-2 先化简