6x-x=125

x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,x/(x-2)+(x-9)/(x-7)=(x+1)/(x-1)+(x-8)/(x-6)x/(x-2)-(x-8)/(x-6)=(x+1)/(x-1)-(x-9)/(x-7)(x^2

x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,x=4..思路..将第二项移到右边..第三项移到左边..两边分别进行通分化简..做到这步乃就明白了..千万不要两边同时进行化简..很麻烦的..

(x+8)(x+6)(x+7)+(x+5)(x+6)(x+7)=(x+5)(x+8)(x+7)+(x+5)(x+8)(x+6)方程左边=(x+8)(x+6)(x+7)+(x+5)(x+6)(x+7)=(x+6)(x+7)(x+8+x+5)=

解方程6x-x=1255X=125X=125/5X=255x=125x=256x-x=1255x=125x=256x-x=5x=125,x=125/5;x=256x-x=1255x=125x=256x-x=1255x=1255x/5=125

已知X=4-根号3求(X*X*X*X-6X*X*X-2X*X+18X+23)/(X*X-8X+15)的值紧急,,明天有用,,设x1=4-√3,x2=4+√3,是方程X^2-8X+13=0的两根所以X1^2-8X1+15=2X^4-6X^3-

intx=6;x+=x-=x*x;printf("x=%d\n",x);intx=6;x+=(x-=x*x);等价于：x=(x+=(6-(6*6)))=(x+=-30)=-60;

1.(x+7)/(x+6)+(x+9)/(x+8)=(x+10)/(x+9)+(x+6)/(x+5)2.已知：-x+13/（x-5)(x+3)=A/(x-5)-B/(x+3).求A,B3.已知abc=1,求a/(ab+a+1)+b/(bc+

解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)x/(x-2)=2x/(x-3)+(1-x)/(x-2)(x-3)x(x-3)/(x-2)(x-3)=2x(x

2x+3x+4x+5x+x+6x+7x=1002x+3x+4x+5x+x+6x+7x=10028x=100x=100/28x=25/727x=100x=100/27；；；；；；；；；；；速率可达粉色礼服螺丝钉解放isskl其实我不会2x+3

（X+X)+(X-X)+(X*X)+(X/X)=100（X+X)+(X-X)+(X*X)+(X/X)=1002X+0+X*X+1=1002X+X*X=99X(X+2)=99X=9因为(9+9)+(9-9)+(9×9)+(9÷9)=100，∴

125x(80+8)=()x()+()x()125x(80+8)=125×80＋125×8

(x+7/x+6)+(x+9/x+8)=9x=(x+10/x+9)+(x+6/x+5)(x+7/x+6)+(x+9/+x+8)=(x+10/x+9)+(x+6/x+5)(x+9/+x+8)-(x+10/x+9)=(x+6/x+5)-(x+7

x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7x=?x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+71+1/(x+1)-1-1/(x+3)=1+1/x+5)-1-1/(x+7)1/(x+1)+1/(x+7)=1

x-4/x-5-x-5/x-6=x-7/x-8-x-8/x-9求x=?(X-4)/(X-5)-(X-5)/(X-6)=(X-7)/(X-8)-(X-8)/(X-9)[(x-4)(x-6)-(x-5)2]/(x-5)(x-6)=[(x-7)(

已知3x*x-x=1,求6x*x*x+7x*x-5x+20003x*x=1+x得6x*x*x+7x*x-5x+2000=3x^2*2x+7x^2-5x+2000=(1+x)2x+7x^2-5x+2000=9x^2-3x+2000=3(3x^

X(x平方-6x-9)-x(x平方-8x-15)+2x(3-x)其中x=-六分之一 

X-0.8X=6X=?你好X-0.8X=60.2X=6X=30很高兴为您解答,不理解请追问,满意请点右上角选为满意答案,谢谢!

3x+5x-6x=?3x+5x-6x=(3+5-6)x=2x3x+5x-6x=(3+5-6)x=2x3x+5x-6x=8x-6x=2x3x+5x-6x=(3+5-6)x=2x

X乘X=6乘XX=0或者X=6

(X-5)(X-6)=X-5(X-5)(X-6)=X-5则(x-5)(x-6)-(x-5)=0则(x-5)(x-6-1)=0则(x-5)(x-7)=0所以x=5或x=7(X-5)(X-6)=X-5（X-5）(X-6)-1x(X-5)=0(x