(2X+1)÷2×3+1=74/5X-(465-X)×2/3=201又1/3-1/40X=91又1/3-1/50X)×1/2

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(2X+1)÷2×3+1=74/5X-(465-X)×2/3=201又1/3-1/40X=91又1/3-1/50X)×1/2(2X+1)÷2×3+1=74/5X-(465-X)×2/3=201又1/3

(2X+1)÷2×3+1=74/5X-(465-X)×2/3=201又1/3-1/40X=91又1/3-1/50X)×1/2
(2X+1)÷2×3+1=7
4/5X-(465-X)×2/3=20
1又1/3-1/40X=91又1/3-1/50X)×1/2

(2X+1)÷2×3+1=74/5X-(465-X)×2/3=201又1/3-1/40X=91又1/3-1/50X)×1/2
(2X+1)÷2×3+1=7
(x+0.5)×3+1=7
3x+2.5= 7
x=1.5
4/5X-(465-X)×2/3=20
0.8x-310+x=20
22\15x=330
x=225
1又1/3-1/40X=(91又1/3-1/50X)×1/2
4/3-1/40X=274/3×1/2﹣1/50X×1/2
4/3-1/40X=274/6-1/100X
4/3-274/6=-1/100X+1/40X
X=-26600/9

就把括号去掉 然后将X的系数合并再解答啊
(2X+1)÷2×3﹢1=7
2X÷2×3﹢1÷2×3﹢1=7 3X=7-1-1÷2×3 3X=9/2 X=3/2
4/5X-(465-X)×2/3=20
4/5X-465×2/3+X×2/3=20 22/15X=20+465×2/3 22/15X=330 X=225
1又1/3-1/40X=(...

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就把括号去掉 然后将X的系数合并再解答啊
(2X+1)÷2×3﹢1=7
2X÷2×3﹢1÷2×3﹢1=7 3X=7-1-1÷2×3 3X=9/2 X=3/2
4/5X-(465-X)×2/3=20
4/5X-465×2/3+X×2/3=20 22/15X=20+465×2/3 22/15X=330 X=225
1又1/3-1/40X=(91又1/3-1/50X)×1/2
4/3-1/40X=274/3×1/2﹣1/50X×1/2 4/3-1/40X=274/6-1/100X 4/3-274/6=-1/100X+1/40X
3/200X=-266/6 X=-26600/9

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*-----------------------------------------------*| 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 || 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x 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 (x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3) 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) x(x-2)-2x(x+1)-3x(x-5) 其中x=负½ x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x 请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360 x-3/x²-1 ÷ (x-3)(x+1)/x²+2x+1 + 1/x+1,其中x=2 x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? 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.(1/X-1 )-2=X^-3X/X^-12.(X/X+1)^+5(X/X+1)+6=03.(8(X^+2X)/X^-1)+ 3(X^-1)/X^+2x 写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4 先化简,再求值:(1)(x+1/x²-x-x/x²-2x+1)÷1/x,x=根号2+1 (2)(1+x-3/x+3)÷2x/x²-9 x=根号3+3 (3)4-x/x-2÷(x+2-12/x-2)x=根号3-4 (4)x-3/2x-4÷(5/x-2-x-2) x=根号3-2 x/(x-2)-(1-x ² )/(x ² -5x+6)=(2-x)/(x-3) 解方程,急 若|x|=7,若|x|=0 则x= 5-3x²+5x-(2x²-3x) (X²-3x+1)(三分之二x²-5x-3) 1.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/(x^2-5x+6)+(x^2-3x+8)/(x^2-4x+3)2.{(x^2)/(x-y)}*{y/(x+y)}-{(x^4y)/(x^4-y^4)}÷{(x^2/x^2+y^2)^2}