(1-4/9)x+(100-x)×(1-2/7)=60 说 清楚 怎么解,

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/28 21:48:48
(1-4/9)x+(100-x)×(1-2/7)=60说清楚怎么解,(1-4/9)x+(100-x)×(1-2/7)=60说清楚怎么解,(1-4/9)x+(100-x)×(1-2/7)=60说清楚怎么

(1-4/9)x+(100-x)×(1-2/7)=60 说 清楚 怎么解,
(1-4/9)x+(100-x)×(1-2/7)=60 说 清楚 怎么解,

(1-4/9)x+(100-x)×(1-2/7)=60 说 清楚 怎么解,
(1-4/9)x+(100-x)×(1-2/7)=60
5x/9+500/7-5x/7=60
35x+4500-45x=3780
720-10x=0
x=720÷10
x=72

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.(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} 35道.符号^代表平方.读起来就是(X的平方).1,x^-x-202,x^-9x+203,x^-9x-204,x^+9x+205,x^-18x+326,x^+14x-317,x^+18x+328,x^+14x-329,x^+19x+4810,x^+47x-4811,x^+13x-4812,x^+2x-4813,x^+26x+4814,x^-22x-4815,x^+17x+7216,x^+21x-10017,x^-x-7218,x 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...... (3x^2+9x+7)/(x+1)-(2x^2-4x+3)/(x-1)-(x^3+x+1)/(x^2-1)是不是错了? 1、x*(x+3)*(x+6)*(x+9)=68040 2、x*(x+1)*(x+2)*(x+3)*(x+4)=55440 (x-1)^3(x+1)(x-2)/(x+4) (x-1)/(x^2-5x+6)+(x-2)/(x^2-4x+3)+(x-3)/(x^2-3x+2)还有一道:(1-4x)^2/2x+3*(4x^2+12x+9)/(4x-1)(1-4x)^2/(2x+3)*(4x^2+12x+9)/(4x-1)第二题应该是这样的、不好意思、要有过程! -3x-[4x-(-9x+1/2)-2], (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 (1) 3x-42=9x-2 (2) 2x-5(3-2x)=10 (3) 2(2x+1)-(5x-1)=6 (4)2x+14=28-14x(5)2(x-2)-3(4x-1)=9(1+x)(6)11x+64+2x=100-9x(7)15-(8-5x)=7x+(4-3x)(8)30x-10(10-x)=100 化简[(x+2)/(x²-2x)+(x-1)/(x²-4x+4)]除以(x-4)/x [(x+2)/(x²+2x)-(x-1)/(x²-4x+4)]÷(x-4)/x 计算:(x+2/x^2-2x-x-1/x^2-4x+4)×x/4-x (x+2/x^2-2x-x-1/x^2-4x+4)/x-4/x因式分解