(x-5)+(x+5)+2x+(x÷2)=180的解

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/28 20:09:52
(x-5)+(x+5)+2x+(x÷2)=180的解

(x-5)+(x+5)+2x+(x÷2)=180的解
(x-5)+(x+5)+2x+(x÷2)=180的解

(x-5)+(x+5)+2x+(x÷2)=180的解
(x-5)+(x+5)+2x+(x÷2)=180
2x+2x+x/2=180
9x/2=180
x=40

X=40

(x-5)+(x+5)+2x+(x÷2)=180
x-5+x+5+2x+0.5x=180
4.5x=180
x=180/4.5
x=40

2x-10+2x+10+4x+x=360
9x=360
x=40

去括号,化简得;
4X+X/2=180
9X/2=180
9X=360
X=40

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 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 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} 计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1 解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3) (x*x-5x)(x*x-5*x-2)-24分解因式 x(x平方-1)+2X平方(X+1)-3X(2X-5)帮个忙 化简(x+2)(x的平方-6x-9)-(x-5)(x-3)x (-x的平方+2x+15)÷(5-x) .X²+13X+36 .X²+5X-20 .X²-2X-15 .8(X²+X)²-8(X²+X)+12 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- 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 3-X/X-2÷(X+2-(5/X-2)) 化简 X-2分之3-X除以(X+2- X-2分之5) 先化简再求值:(x²+2x-8/x³+2x²+x)÷(x-2/x)其中x=-4/5 3-x/2x-4÷(x+2 - 5/x-2)(1/x+1 + 1/x-1)÷ x/x+11/x+1 - x+3/x²-1 · x²-2x+1/x²+4x+3(1/x - 1/2)÷(1- x²+4/4x ) *-----------------------------------------------*| 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 ||