x/2=34.5/100 25/500=x/500+200 怎么计算
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x/2=34.5/10025/500=x/500+200怎么计算x/2=34.5/10025/500=x/500+200怎么计算x/2=34.5/10025/500=x/500+200怎么计算&nbs
x/2=34.5/100 25/500=x/500+200 怎么计算
x/2=34.5/100 25/500=x/500+200 怎么计算
x/2=34.5/100 25/500=x/500+200 怎么计算
x-2x+3x-4x+5x.+99x-100x=25求解
解方程:x-2x+3x-4x+...+99x-100x=25
解方程:x-2x+3x-4x+.+99x-100x=25
x-2x+3x-4x+...+99x-100x=25
(X+X)+(X-X)+(X*X)+(X/X)=100
600-25X+100X-5X^2=840
2x+3x+4x+5x+x+6x+7x=100
x X 2x=25
x/2=34.5/100 25/500=x/500+200 怎么计算
8(x+15)-20=10x 2(100-x)-15=150-x 25x-165=10(15-x) 5(x-10)=3x-6
8(x+15)-20=10x 2(100-x)-15=150-x 25x-165=10(15-x) 5(x-10)=3x-6
1/2x+1=1/2-1/3x x-2x+3x-4x+...+99x-100x=25解方程
2x=25+x.
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
1/X(X+1)+1/(X+1)(X+2)+1/(X+2)(X+3).+1/(X+99)(X+100)=
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
1X+2X+3X…+98X+99X+100X=50500X X等于多少?
1x+2x+3x+4x+5x+6x+7x…+99x=100