(8-2X)*40%+(X+3)*36%+X*35%=11*38.5%

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(8-2X)*40%+(X+3)*36%+X*35%=11*38.5%(8-2X)*40%+(X+3)*36%+X*35%=11*38.5%(8-2X)*40%+(X+3)*36%+X*35%=11*

(8-2X)*40%+(X+3)*36%+X*35%=11*38.5%
(8-2X)*40%+(X+3)*36%+X*35%=11*38.5%

(8-2X)*40%+(X+3)*36%+X*35%=11*38.5%
3.2-0.8x+0.36x+1.08+0.35x=4.235
0.8x-0.36x-0.35x=3.2+1.08-4.235
0.09x=0.045
x=0.045÷0.09
x=0.5

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 解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3) .X²+13X+36 .X²+5X-20 .X²-2X-15 .8(X²+X)²-8(X²+X)+12 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 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- 300字读后感 2篇 俄把格式说一下吧:《xxxx》(写题目)主要内容:x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x(写那篇文章的主要内容)思考分析:x x 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 解方程:X/4+8=2008 40%X-1.6=12 24:2/3=X:0.5X/4+8=200840%X-1.6=1224:2/3=X:0.54X-12=6X除3+0.6=3(x-1.5)乘4=263x+4+x=80x/3-x/6=2.460+3x-x=801.5x+36=x+45 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 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} (8-2X)*40%+(X+3)*36%+X*35%=11*38.5% EXCEL两表间同时满足两个条件数据引用如题:表1为原始数据表1 2 3 4 5 6 7 8 9 10.A X X X X X X X X X XB X X X X X X X X X XC X X X X X X X X X XD X X X X X X X X X X .表2(A列) (B列) (C列)A 1A 3B 8B 5C 2D 3...... *-----------------------------------------------*| 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 || 2(X-4)=3(X-12) 2x-8=3x-36 x=28 2x^3-6x^2-8x(分解因式);(x^2-5x)^2-36(分解因式) 请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360 通分:(1)2/x^2+x-2,1/x^2-2x-8(2)x/x^2-3x-4,1/x^2-8x+16 ① (x-5)/8+40=(x-5)/6② x+(3x+1)+(x/2 -1)=180