(2x-45)÷x=1/5 x=25(2x-45)÷x=1/5 x=25
来源:学生作业帮助网 编辑:六六作业网 时间:2025/01/20 07:16:02
(2x-45)÷x=1/5x=25(2x-45)÷x=1/5x=25(2x-45)÷x=1/5x=25(2x-45)÷x=1/5x=25(2x-45)÷x=1/5x=25(2x-45)÷x=1/5x=
(2x-45)÷x=1/5 x=25(2x-45)÷x=1/5 x=25
(2x-45)÷x=1/5 x=25
(2x-45)÷x=1/5 x=25
(2x-45)÷x=1/5 x=25(2x-45)÷x=1/5 x=25
(2x-45)÷x=1/5
两边乘以 5x
10x - 225 = x
9x = 225
x=25
两边同时乘X,得2X-45=X/5,再两边同时乘5,得10X-225=X,移项得9X=225,所以X=25
(2x-45)÷x=1/5
2x-45=x/5
10x-45×5=x
9x=45×5
x=5×5
x=25
(2x-45)÷x=1/5 x=25(2x-45)÷x=1/5 x=25
一元二次方程解答!x(5x+4)=5x+44x^2-45=31x-3x^2+22x-24=0(x+8)(x+1)= -12(3x+2)(x+3)=x+14
x-2x+3x-4x+5x.+99x-100x=25求解
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-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
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^2+2x-8/x^3+25x+x/(x-2/x-x+4/x+1,其中x=-4/5
f(x,-x)=x^2+2x,fx(x,-x)=5x+1,则fy(x,-x)=
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
解方程:(2x+5)(4x*x-10x+25)=8x(x*x+1)
x/(x-2)-(1-x ² )/(x ² -5x+6)=(2-x)/(x-3) 解方程,急