4x+y-1=0 2y-2x+1=0 求二元一次方程的解
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/26 12:37:04
![4x+y-1=0 2y-2x+1=0 求二元一次方程的解](/uploads/image/z/995865-33-5.jpg?t=4x%2By-1%3D0+2y-2x%2B1%3D0+%E6%B1%82%E4%BA%8C%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%9A%84%E8%A7%A3)
x)3Ю55P05mlzik
,|6mgX&HT-v6dWdǒv>9@L*l
Nyf
PkPڴVPD蛂My{
vPa~qAbԕ6`N=#l**lzAC¢ȢBO|
#i
4x+y-1=0 2y-2x+1=0 求二元一次方程的解
4x+y-1=0 2y-2x+1=0 求二元一次方程的解
4x+y-1=0 2y-2x+1=0 求二元一次方程的解
2y-2x+1=0两边乘2得-4x+4y+2=0和第一个相加得5y=-1 y=-1/5
代回第一个式子得x=-3/10
X=0.3 y=-0.2
x=3/10
y=-1/5
8x+2y-2=0 2y-2x+1=0 两式相减
x^2-x+y^2+2y+5/4=0 求x^-1+y^0
3x+4y-5=0 x^2+y^2=1求x.y
x>0 Y>0x+y=2求1/x+4/y的最小值
已知x求^2+y^2-6x-8y+25=0求1/x-y /x+y/x^4-y^4
x²-4x-1=0,求(2x-3)²-(x+y)(x-y)-y²
若(x+y)(x+y-1)-2=0,求x+y的值求
若|x+y-1|+(x-y-2)²=0,求代数式(x+2y)(x-2y)-(2x-y)(-y-2x)的值.
求导数y=3x-x^2 求y',y'/ x=1 y'/x=0
已知:x-2y+3=0 求x^2-(4y+1)x+4y^2+2y
x-2y+3=0 求x^2-(4y+1)x+4y^2+8y
已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值?
已知x^2+y^2-8x+12y+52=0 ,求1/2x-1/x-y(x-y/2x-x^2+y^2)
已知x^2+y^2-8x+12y+52=0 ,求1/2x-1/x-y(x-y/2x-x^2+y^2)
已知实数x、y满足|2x-y+1|+3根号3x-2y+4=0,求代数式[(x-y)/(x-2y)]/(x的平方-2y)/[(x的平方-y的平方)/x的已知实数x、y满足|2x-y+1|+3根号3x-2y+4=0,求代数式[(x-y)/(x-2y)]/(x的平方-2y)/[(x的平方-y的平方)/(x的
已知(3x+1)(3x-3)-3x+2)^2=-7,(y+7)(y-7)-y(y-7)=0,求8y^2-5y(-y+3x)+4y(-4y-5/2x)的值
已知(2x+1)*2+y*2+2y+1=0 求{(x*2+y*2)-(x-y)*2+2y(x-y)}/(2y)
已知4y^2+4y+1+|x-1|=0 求[(x-2y)^2-(2x+y)(2x-y)+(3x-y)(x+y)]÷(2y)的值
若(x*x+y*y)(x*x+y*y)-4x*x*y*y=0,求代数式(x*x+5xy+y*y)/(x*x+2xy+y*y)的值