y/3-(x+1)/6=3,2(x-y/2)=5(x+y/2)解二元一次方程详细过程
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 16:12:17
![y/3-(x+1)/6=3,2(x-y/2)=5(x+y/2)解二元一次方程详细过程](/uploads/image/z/586771-43-1.jpg?t=y%2F3-%28x%2B1%29%2F6%3D3%2C2%28x-y%2F2%29%3D5%28x%2By%2F2%29%E8%A7%A3%E4%BA%8C%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%E8%AF%A6%E7%BB%86%E8%BF%87%E7%A8%8B)
y/3-(x+1)/6=3,2(x-y/2)=5(x+y/2)解二元一次方程详细过程
y/3-(x+1)/6=3,2(x-y/2)=5(x+y/2)解二元一次方程
详细过程
y/3-(x+1)/6=3,2(x-y/2)=5(x+y/2)解二元一次方程详细过程
x=-7,y=6
消掉x
字有点烂,凑活一下吧
2(x+y)-3(x-y)=1 6(x+y)+(x-y)=51
{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1
已知:2x+y=6,x-3y=1 求7y(x-3y)(x-3y)-2(3y-x)(3y-x)
(x+y)(x-y)+(x-y)^2-(6x^2×y÷2y-2xy^2÷2y)其中x=-3,y=1/3
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
解二元一次方程组:3(x+y)-4(x-y)=4,x+y/2+x-y/6+1x+y/2+x-y/6+1=1
若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值
(x-2y)(x+y)-2x(-2x-3y)+6x(-x-y),其中x=-1,y=2
(x-2y)(x+y)-2x(-2x-3y)+6x(-x-y),其中x=-1,y=2要讲解和答题
(3x-y)^2+(3x+y)(3x-y),x=1,y=-2
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/2+x-y/6=5 2(x+y)-3(x-y)=-2
(x+y)/2- x-y/2=6 3(x+y)=4(x-y)
x+y/3+x-y/2=6 4(x+y)-2(x-y)=40
6(x-y)-2(x+y)=14 3(x-y)+(x+y)=5
(x-y)/(x+y)=3求( 3x-2y-1)/(x+y-5)