x=y*20+100,x=y*25-50]
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:综合作业 时间:2024/05/10 01:57:41
x=y*20+100,x=y*25-50]
x=y*20+100
x=y*25-50
x=700,y=30
x=y*25-50
x=700,y=30
x+y+y=20 x+x+y=25 x= ? y=? 小学三年级题
x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20
{(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20
4(x+y)-3(x-y)=-20,2/x+y+3/x-y=6
X+Y=7(100X+Y)-(10Y+X)=(10Y+X)-(10X+Y)
二元函数f(x,y)=x+y/x-y,求f(y/x,x/y)
有这样一道题,计算:(x-y)[(x+y)(x+y)-xy]-(x-y)[(x-y)(x-y)+xy]的值,其中x=20
[x(x-y)-y(x-y)+(x+y)(x-y)]÷2x其中x=2012 y=2013
) y=cos(x-y)
x+y=5; x^y+y^x=17
因式分解下列式子:x(x-y)+y(y-x)=?
If two even number x,y satisfy equation x×x+100=y×y,x