3x+x+6=26

（3x+5)/(x+2)+(3x+26)/(x+9)=(3x+17)/(x+6)+(3x+14)/(x+5)解方程（3x+5)/(x+2)=[(3x+6)-1]/(x+2)=3-1/(x+2)后面都类似化简3-1/(x+2)+3-1/(x+

（3x+5)/(x+2)+(3x+26)/(x+9)=(3x+17)/(x+6)+(3x+14)/(x+5)解方程（3x+5)/(x+2)+(3x+26)/(x+9)=(3x+17)/(x+6)+(3x+14)/(x+5)[3x+2)-1]

3X-18=13.21.5X-X=64X+1.2X=263x-18=13.23x=13.2+18x=10.41.5x-x=60.5x=6x=6/0.5=124x+1.2x=265.2x=26x=5

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-

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+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

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+26+6=3*(X+6)原式化简为X+32=3X+3*6方程两边加上-3X得-2X+32=3*6方程两边加上-32得-2X=3*6-32即-2X=-14方程两边同时乘-1/2得X=7X+26+6=3×(X+6)X+26+6=3X+6×3

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

解方程：2x+1.5x=17.58x-3x=1053x+x+6=26 

2x+1.5x=17.58x-3x=1053x+x+6=26怎么解

3x+x+6=26 

3x+x+6=263x+x+6=263x+x=26-64x=20x=20÷4x=54X=20X=5小朋友，乖，告诉姐姐，你几岁了，怎么这么简单的题目都不会？3x+x+6=264x+6=264x=20x=53x+x+6=263x+x=26-6

x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?x(1+2+...+9)=x(9-8-7-...-1)x=0记得采纳啊

7X-7=4X-14X-3+3X=6X-26*(2X-7)=5*(X+8)+20.2*(5X-1)+5*(X-1)=0.82*(3y-4)+7*(4-y)=4y7X-7=4X-13x=6x=24X-3+3X=6X-2x=3-2=16*(2X

(X-5)(X+3)+(X-2)(X+4)=26x²-2x-15+x²+2x-8=262x²-23=26x²=49/2x=-7√2/2,x=7√2/2

x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)前面多项式提取公因式x就有前面两个式子合并为：x(x²-6x-9-x²+8x+15)=x(2x+6)=2x(x+3);然后与后面的式子合并同类项,即提取公因

[3/x]-[4/x-1]=6/x-x²[3/x]-[4/x-1]=6/x-x²3（x-1)+4x=-63x-3+4x=-63x+4x=-6+37x=-3x=-3/7