100+100(x-1)(1-25%)=100x(1-20%)如何解?

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100+100(x-1)(1-25%)=100x(1-20%)如何解?
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100+100(x-1)(1-25%)=100x(1-20%)如何解?
100+100(x-1)(1-25%)=100x(1-20%)如何解?

100+100(x-1)(1-25%)=100x(1-20%)如何解?
100+100*(0.75)(x-1)=100X(0.8)
100+75(x-1)=80X
100+75X-75=80X
25=5X
x=5

100+100(x-1)(1-25%)=100x(1-20%)
100+75（x-1)=80
100+75x-75=80
75x=80+75-100
75x=55
x=55÷75
x=15分之11

100+75x-75=80x
5x=25
x=5

100^1/x=25求x, 1/2x+1=1/2-1/3x x-2x+3x-4x+...+99x-100x=25解方程 1/X(X+1)+1/(X+1)(X+2)+1/(X+2)(X+3).+1/(X+99)(X+100)= 设函数f(x)=(x-1)(x-2)...(x-100)(x>100),求F'(X) f(x)=x(x-1)(x-2)…(x-99)(x-100),求f'(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 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 已知x^4+x^3+x^3+x^2+x^1+1=0,求x^100+x^99+x^98+x^97+x^96的值 x除55%=100 60%x=30 x+50%x=4.5 （1-25%）x=72 4x+40%x=176 解方程 怎样计算百分数的方程120-25%x=100x+13%x-28%x=3.4(1-40%)x=720x-95%x=155 X+25%X+15%X=420 2X+150=20501.5X-1200=(1+20%)2X-5+X=100 （X+X)+(X-X)+(X*X)+(X/X)=100 x(x-1)(x-2)...(x-99)(x-100) f(x)=x(x-1)(x+2)(x-3)(x+4)……(x+100),求f'(1) 已知x=100,求x(x+1)分之1+(x+1)(x+2)分之1+(x+2)(x+3)分之1+.+(x+99)(x+100)分之1 f(x)=x(x-1)(x-2)…(x-100),求f'(100).