(x+23)/(100-x+32)=2/3的计算过程
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(x+23)/(100-x+32)=2/3的计算过程
(x+23)/(100-x+32)=2/3的计算过程
(x+23)/(100-x+32)=2/3的计算过程
(x+23)/(100-x+32)=2/3
3(x+23)=2(132-x)
3x+69=264-2x
3x+2x=264-69
5x=190
x=190÷5
x=38
先把能算的算出来:(x+23)/(100-x+32)=2/3 :(x+23)/(132-x)=2/3
再根据比例的基本性质:2*(132-x)=3*(x+23)
264-2x=3x+69
264-69=3x+2x
195=5x
x=39
(X+X)+(X-X)+(X*X)+(X/X)=100
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=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
1) 3-2x/1-x-1=x+2/x-32) x/3+x-x/2-x=23) x-1/x+1-x/x-1=4/x*-14) 1/(x-1)(x-2)=1/(x-4)(x-5)麻烦帮帮忙、解下
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
2x(7-3x)+5x(2x+1)=x(4x-3)+32
100(X - 2) + 10X + 2X = 100*2X + 10X + X - 2 - 495
x=1-x/2+x/4-x/8+x/16-x/32
100×2x+10x+3x+216=100×3x+10×2x+x
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:x-2x+3x-4x+...+99x-100x=25
解方程:x-2x+3x-4x+.+99x-100x=25
x-2x+3x-4x+...+99x-100x=25