6-2x=12x+9告诉我怎么移项就好了 9x+3=4x-3 3x+5=4x+3
x平方-2x=4x平方-3x怎么移项,合并同类项
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
4x+3=5x-1咋算,移项
4x-2=3-x 移项的
x-12=34+3x移项得 7x-3=6x-5移项得
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
例:已知多项式9-6x-4x^2=7,求2^2+3X=5的值.由9-6x-4x^2=7,移项得-6x-4x ^2=7-9
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
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),
解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
4x=5x+2/3 50%x-2=20%x+8 用移项的方法.