X/(X+1000)=5%

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X/(X+1000)=5%X/(X+1000)=5%X/(X+1000)=5%x/(x+1000)=5%===>(x+1000)/x=20===>x+1000=20x===>19x=1000===>x

X/(X+1000)=5%
X/(X+1000)=5%

X/(X+1000)=5%
x/(x+1000)=5%
===> (x+1000)/x=20
===> x+1000=20x
===> 19x=1000
===> x=1000/19

X/(X+1000)=5％
X=0.05(X+1000)
X=0.05X+50
X-0.05X=50
0.95X=50
X=10000/19

交叉相乘，100X＝5（X+1000），95X=5000，X=1000/19

X/(X+1000)=5% 用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+. 解方程1000*X^5-59(X^4+X^3+X^2+X)=1000 x-三分之一x-四分之一x(x-三分之一x)=5 5%=(1000-x/x)*100%求式中x等于多少 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 5x+【1000-x】*8=6932 (1000-X)*3-5X=2600 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) (x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2 x-2x+3x-4x+5x.+99x-100x=25求解 x.x-5x+1=0,那么x.x+1/x.x 2x+3x+4x+5x+x+6x+7x=100 x(x-2)-2x(x+1)-3x(x-5) 其中x=负½ (x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3) x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x （X+X)+(X-X)+(X*X)+(X/X)=100 x+1000-x=1000,x=?