解x-1/1-10%=x-0.9/0.92这个方程.

解方程:(x+10)+(x-15)=280-x x+15=3*(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(...解方程:(x+10)+(x-15)=280-xx+15=3*(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7)13x-4(2x+5)=17(x-2)-4(2x-1) 解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1 1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550必须用解方程 x-2=(104-x)+2 6x-59=10x-75 (x+10)+(x-15)=280-x4（x-62)=x-38 60x-40=(60+20)*(x-5) 32x+32*0.5-25x+64x=24x+496-49x x+15=3*(109-x ) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(2x+5)=17(x-2)-4(2x-1) (13x+8)/3=5x-1x-60=2[(3561-x)+100]+1 (x+9)+12=2[(x-9)-1 一个“整式的乘法”的问题请先阅读下列解题过程,再仿做下面的问题.已知X*X + X - 1=0,求X*X*X + 2*X*X + 3的值.解X*X*X + 2X*X +3=X*X*X +X*X -X +X*X +X +3=X{X*X +X -1} +X*X +X -1 +4=0+0+4=4+ x + X*X + X*X*X=0.+ X*X + X*X*X 1/x(x+1)+1/(x+1)(x+2)+...+1/(x+9)(x+10)=1/(x+10),解方程 解方程：（2x+5)(4x*x-10x+25)=8x(x*x+1) 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) 解方程:1/x+1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+……+1/(x+9)(x+10)=0 试解方程：2/(x+1)(x+2) + 2/(x+2)(x+3)＋ … ＋2/(x+10)(x+11)=5x/(x+1)(x+11) 10X(4x+1)+x-10x+4x+1=63怎么解 X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4) 解方程.0.8+x=1.2 2.5x=10 x+0.9x=57 10x-6x解方程.0.8+x=1.2 2.5x=10x+0.9x=57 10x-6x=128 X*{1+20%}*0.9-X=24 X-5X-(10X+1)=1怎么解? （ 3.6-1）x=3.25 12.5x-0.9x=52.2 x-0.72x=0.336 8x-0.5x=37.5 0.7x+x =0.85 解方程 解方程：x-6分之1x=20 x+0.9x=9.5 x-4分之7=5 5分之3x+10分之9x=13 9+8分之5=19 解方程:x(x-1)/1+x(x+1)/1…+(x+9)(x+10)/1=11?12解方程:x(x-1)/1+x(x+1)/1…+(x+9)(x+10)/1=11/12