3×3(x+2)=4(x+2)+60,2分之x=3x-1,2(2y-1)-3(3y-5)=12,10y+5(y-1)=3(7-y)

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3×3(x+2)=4(x+2)+60,2分之x=3x-1,2(2y-1)-3(3y-5)=12,10y+5(y-1)=3(7-y)

3×3(x+2)=4(x+2)+60,2分之x=3x-1,2(2y-1)-3(3y-5)=12,10y+5(y-1)=3(7-y)
3×3(x+2)=4(x+2)+60,2分之x=3x-1,2(2y-1)-3(3y-5)=12,10y+5(y-1)=3(7-y)

3×3(x+2)=4(x+2)+60,2分之x=3x-1,2(2y-1)-3(3y-5)=12,10y+5(y-1)=3(7-y)
X=25/7
X=2/5
Y=1/5
Y=13/9

题目要求是么 啊,我根本看不懂。。

解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3) 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 (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 3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/(x-2)-x/(x+2)÷2x/(x²-4)化简 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 2x-6/4-4x+x^2/(x+2)*x^2-4/3-x,其中x=-1 (x+2分之3x-x+2分之x)/x平方-4分之x(x-1)=4 *-----------------------------------------------*| 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-2)-2=3(x-2)/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(2x-3)=x² 求x, 60%x+25=40 x+30%x=52 19-120%x=7 4分之3x-5%x=17.5 x-10%x=18 (1-25%)x=36 2x+30%x=9.2 x(x^2-1)+2x^2 *(x+1)-3x*(2x-5)=x(3x^2-4x)-28