75%x+3/4X=17 3.6:1 4/5X=1 3/4
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75%x+3/4X=17 3.6:1 4/5X=1 3/4
![75%x+3/4X=17 3.6:1 4/5X=1 3/4](/uploads/image/z/3219532-52-2.jpg?t=75%EF%BC%85x%2B3%2F4X%3D17+3.6%3A1+4%2F5X%3D1+3%2F4)
251375193,
1、75%x+3/4X=17
0.75x+0.75x=17
1.5x=17
x=17÷1.5
x=34/3
2、3.6:1
=36:10
=18:5
3、4/5X=13/4
16x=65
x=65/16
1、75%x+3/4X=17
0.75x+0.75x=17
1.5x=17
x=17÷1.5
x=34/3
2、3.6:1
=36:10
=18:5
3、4/5X=13/4
16x=65
x=65/16
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
1x+2x+3x+4x+5x+6x+7x…+99x=100
(X+2)/(X+1)-(X+4)/(X+3)=(X+6)/(X+5)-(X+8)/(X+7)
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
(x-1)(x-2)(x-3)(x-4)=(x+5)(x+6)(x+7)求X等于几?
3/x-1=4/x 6/x+1=x+5/x(x+1)
3x(7-2x)+5x(2x-1)=4x(x-3)+5