解方程,3.6+x=10 x÷9=12 7x=9.8 4x=36 x-108=2
当x=9/2时,求(x^2+7x+10)/(x^2+6x+5)×(x^3+1)/(x^2+4x+4)÷(x^2-x+1)
130%x+x=4.6 x÷50%=10 x/9-x/15=16%
1. x+0.5x=6 4x+16=40 x/5=32% x-4/9x=10/21 x-1/8x=5/8 7x÷2=2.
10+x=3、x-2=-5、-9x=36、x÷4=7、12-x=8、(-40)÷x=8,怎么计算?请说明基本原理及其公式
x-2/(x^2-9)(1+(2x-7/x^2-4x+4)÷(x+1)/(x+3)其中x=2010
数学“求未知数” 10-4X=5X+73 15X=54-9X 14x-14乘31=58 20+5X-4=36 20÷(1
(2x-6)/(x²-4x+4)÷(3-x)/(x²+6x+9)×(2-x)/(x+3)
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
x+2分之1x=12 3分之1x-4分之1x=24 10÷9分之7=x÷5分之4
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),
x-4/x-6+x-8/x-10=x-5/x-7+x-7/x-9