如图X-10+2X+20=5X-50X+2X+10=5X-50X+2X-5X=-50-10-2X=-60X=-60/-2
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/06/23 13:57:35
如图
![](http://img.wesiedu.com/upload/0/68/068c423ac521421296f74d04bd0ab764.jpg)
X-10+2X+20=5X-50
X+2X+10=5X-50
X+2X-5X=-50-10
-2X=-60
X=-60/-2
X=30
这样算不行么?
![](http://img.wesiedu.com/upload/0/68/068c423ac521421296f74d04bd0ab764.jpg)
X-10+2X+20=5X-50
X+2X+10=5X-50
X+2X-5X=-50-10
-2X=-60
X=-60/-2
X=30
这样算不行么?
![如图X-10+2X+20=5X-50X+2X+10=5X-50X+2X-5X=-50-10-2X=-60X=-60/-2](/uploads/image/z/20071809-9-9.jpg?t=%E5%A6%82%E5%9B%BEX-10%2B2X%2B20%3D5X-50X%2B2X%2B10%3D5X-50X%2B2X-5X%3D-50-10-2X%3D-60X%3D-60%2F-2)
方程两边同时乘以2
解得x-10+2x+20=5x-50
50+20-10=5x-2x-x
60=3x
x=20
解得x-10+2x+20=5x-50
50+20-10=5x-2x-x
60=3x
x=20
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
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
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/x-1)+(5x-2)/x*x-x=1 求x(有图)
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
1x()+2x()+3x()+4x()+5x()+6x()+7x()+8x()加9x()+10x()=1980
1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
2x+3x+4x+5x+x+6x+7x=100
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1