3x+2y/4 = x+5y/-3 = 2x+y+2/5用适当方法解此方程组。、
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 09:28:45
3x+2y/4=x+5y/-3=2x+y+2/5用适当方法解此方程组。、3x+2y/4=x+5y/-3=2x+y+2/5用适当方法解此方程组。、3x+2y/4=x+5y/-3=2x+y+2/5用适当方
3x+2y/4 = x+5y/-3 = 2x+y+2/5用适当方法解此方程组。、
3x+2y/4 = x+5y/-3 = 2x+y+2/5
用适当方法解此方程组。、
3x+2y/4 = x+5y/-3 = 2x+y+2/5用适当方法解此方程组。、
3x+2y/4 = x+5y/-3 = 2x+y+2/5
3x+2y/4 = x+5y/-3 x=5y/-6 -y/4=-13y/12
x+5y/-3 = 2x+y+2/5 x+5y/-3=y+2/5 x=y+5y/3+2/5=8y/3+2/5
8y/3+2/5=-13y/12
15y/4=-2/5
y=-8/75
x=26/225
3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2
4(x-y)-3(x-y)=9 5(x-y)+2(x-y)=11
3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27
先化简再求值(x-y)(x-2y)+(x-2y)(x-3y)-2(x-3y)(x-4y) x=4 y=5
(x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)=
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
化简[(3x+4y)^2-(2x+y)(2x-y)+(-x+y)(5x-y)]除以-2y,其中x=-1,y=1
(4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuaihuajian
3X=5Y (X+Y)*3X=(2Y+X)*4+2*2
(x+y-5)*(x+y-5)+(x-y+3)=0 x*x-y*y
已知:3x-5y=0,求x/y,x-y/y,x-y/x
(5x+3y)(3y-5x)-(4x-y)(4y+x)=
2(x+y)-3(x-y)=3 ,4(x+y)+3(x-y)=15
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
3(x+y)-2(x-y)=11 4(x+y)+3(x-y)=9
x+y/2+x-y/6=5 2(x+y)-3(x-y)=-2