(2x+6+3)/(x+3)-1/(x-3)-2/x=2
2+3/(x+3)-1/(x-3)-2/x=2
3/(x+3)-1/(x-3)-2/x=0
3/(x+3)=1/(x-3)+2/x
3/(x+3)=[x+2(x-3)]/[x(x-3)]
3/(x+3)=(3x-6)/[x(x-3)]
1/(x+3)=(x-2)/[x(x-3)]
(x+3)(x-2)=x(x-3)
x^2+x-6=x^2-3x
4x=6
x=3/2
检验，成立
(2x+9\/x+3)-(1\/x-3)-(2\/x)=2
2+3\/(x+3)-1\/(x-3)-2\/x=2 3\/(x+3)-1\/(x-3)-2\/x=0 3\/(x+3)=1\/(x-3)+2\/x 3\/(x+3)=[x+2(x-3)]\/[x(x-3)]3\/(x+3)=(3x-6)\/[x(x-3)]1\/(x+3)=(x-2)\/[x(x-3)](x+3)(x-2)=x(x-3)x^2+x-6=x^2-3x 4x=6 x=3\/2 检验，成立 ...
当x为何值时,代数式x+3分之2x+9-x分之2-x-3分之1的值等于2
(2x+9)\/(x+3)-1\/(x-3)-2\/x=2(2x+6+3)\/(x+3)-1\/(x-3)-2\/x=22+ 3\/(x+3)-1\/(x-3)-2\/x=2∴3\/(x+3)-1\/(x-3)-2\/x=0 方程两边乘以x(x+3)(x-3)得3x(x-3)-x(x+3)-2(x+3)(x-3)=03x²-9x-x²-3x-2x²+18=0-12x=-18x=3\/2...
2\/x+2\/(x+3)+(x-2)\/(x+3)=1怎么算
等式两边同乘以（x+3）2+6\/x+2+x-2=x+3 6\/x=1 x=6
请问这个题怎么解答?
9)3分之x-2分之x-1<110)2(5-3x)>3(4x+2)11)1-2分之1x>212)7x-2(x-3)<1613)3(2x-1)<4(x-1)14)2-6(x-5)大于等于4(3-2x)15)7+3x<5+4x16)5-x(x+3)>2-x(x-1)17)x-2(x+2分之1)小于等于1-3(1-x)18)3(x-1)+2(1-3x)<519)3分之1x-1<x-3分之120)6(...
{X+3\/(2X+9)}-{(X-3)\/(1)}-{(X)\/(2)}=2 X等于多少啊?谢谢哥哥姐姐们了...
{X+3\/（2X+9）}-{（X-3）\/（1）}-{（X）\/（2）}=2 X 2x+9≠0 x≠-(9\/2)(x+3)\/(2x+9)-(x-3)-x\/2=2x (x+3)\/(2x+9)-x+3=5x\/2 (x+3)\/(2x+9)=(7x-6)\/2 2x+6=(7x-6)(2x+9)2x+6=14x^2+63x-12x-54 14x^2+49x-60=0 △=49^2-4*14*(-60)...
(2-x)\/(x-3)-(1)\/(3-x)=2分式方程?
解:1 将(3-x)变成(x-3)(2-x)\/(x-3)+(1)\/(x-3)=2 2 等式两边同时乘以x-3 得 2-x+1=2*(x-3)3 去括号，移项得 3x=9 x=3
(x²\/x-3+9\/3-x)÷x-1\/x²-2x+1化简?
详情请查看视频回答
limx→∞[(2x+3)\/(2x-1)]^x要怎么解,跪求大佬
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(1\/x+1\/x+3)×2+x-2\/x+3=1此方程怎么解.
(1\/x+1\/x+3)×2+x-2\/x+3=1 两边乘以x（x+3）2(x+3+x)+x(x-2)=x(x+3)4x+6+x^2-2x=x^2+3x x=6 [验证]2*(1\/6+1\/9)+4\/9 =2*5\/18+8\/18=1
解方程2(1\/x+1\/x+3)+1\/x+3(x-2)=1 要过程
解方程2(1\/x+1\/x+3)+1\/x+3(x-2)=1 2\/x+2\/x+6+1\/x+3x-6=1 5\/x+3x=1 3x^2-x+5=0 Δ=(-1)^2-4*3*5=-59 <0 方程无实数解 另：方程没写错吗？
