x÷6-2.5＝1.1-搜答案-大师作文网

原式=[(2x-6)/(x^2-4x+4)]/(x+3)*(x^2+x-6)/(3-x)=[2(x-3)/(x-2)^2]/(x+3)*(x+3)(x-2)/(3-x)=-2/(x-2)

(x+1-1/1-x)÷(x-x²/x-1)=[(x+1)+1/(x-1)]×[-(x-1)/x(x-1)]=(x²-1+1)/(x-1)×(-1/x)=-x/(x-1)(x-4/

A={x|x^2-2x-3<3(1-x)}={x|x^2+x-6<0}={x|-3<x<2}B={x|9-x^2>6-2x}={x|x^2-2x-3<0}={x|-

x²+2x／x²-6x+9÷x²-4／x²-3x=x(x+2)/(x-3)^2*x（x-3）/（x+2)(x-2)=x^2/[(x-3)(x-2)]

=18x+0.5x=18.5x

6x-2.5＝27.56x=30x=51.3x-0.8x＝7.50.5x=7.5x=1516/2x＝4080x=16x=0.2

(2x-6)/(x²-4x+4)÷(3-x)/(x²+6x+9)×(2-x)/(x+3)=2（x-3)/(x-2)^2X(x+3)^2/(3-x)X(2-x)/(x+3)=2（x-

192.5再问：发个图片把过程全部照下来！再答：再答：

原式=2x(x-2)/(x+2)×x(x+2)/(x-2)²×3(x-2)/x=6x当x=√3/2时原式=3√3

x+0.3=1.8x=1.8-0.3x=1.5x-1.5=4x=4+1.5x=5.55x=1.5x=1.5/5x=0.3x÷1.1=3x=1.1*3x=3.33+x=5.4x=5.4-3x=2.4x-

这都做不起啊再问：.......●︿●再问：告诉我第一题的做法就行了再答：有x的数字相加，等号右边相加，然后等号右边除以等号左边的数字就求出x了再问：谢谢，我一直对方程的做法不怎么了解。现在懂了。再问

1.(x^3-3x^2)/(x^2+5x+6)÷(x^3-9x)/(x^2+2x-3)*(x+2)/(2x)=x^2(x-3)/(x+2)(x+3)*(x+3)(x-1)/x(x+3)(x-3)*(x

解1：原式=x(x-1)/(x+1)*(x+1)/x=x-1解2：原式=(x+3)^2/(x+3)(x-3)*(x-3)/(x+2)=(x+3)/(x-3)*(x-3)/(x+2)=(x+3)/(x+

原式化简：{（x-3)(x-2)/(x-3)(x-4)}²÷{(x+1)(x+2)/(x-4)(x+2)}²{(x-2)/(x-4)}²÷{(x+1)/(x-4)}

再答：都是等式性质2再问：能不能再帮我解3题？拜托再问：我就给你采纳再问：保证！再问：骗你可以去举报！再问：快点，我妈催了再答：你再提问不行吗？再问：x+0.3=1.8再答：发m！再答：&

χ=0.7×3=2.1χ=2.8×6=16.8χ=7.5-1.5=6χ=7.1+4.2=11.3

①x²-4／x²-4x+3÷x²+3x+2／x²-x=(x²-4)/(x²-4x+3)÷(x²+3x+2)/(x²-x)

x÷6＋x÷9＝5

1.两边乘X(X-2)X=3(X-2)X=3X-6X=3分式方程要检验经检验,X=3是方程的解2.原式=[-(X-3)²/(X+3)(X-3)]÷[2(X-3)/X(X+3)]=[-(X-3