谁来解这道题2x+2y=6\9x+3y=8
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谁来解这道题2x+2y=6\9x+3y=8
![谁来解这道题2x+2y=6\9x+3y=8](/uploads/image/z/18042584-32-4.jpg?t=%E8%B0%81%E6%9D%A5%E8%A7%A3%E8%BF%99%E9%81%93%E9%A2%982x%2B2y%3D6%5C9x%2B3y%3D8)
你没写明白!
2x+2y=6 解得x=-1/6
9x+3y=8 y=19/6
是这意思吗!
2x+2y=6 解得x=-1/6
9x+3y=8 y=19/6
是这意思吗!
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
9y=3x-(x-1),4(x+y)-(2x+4)=8y
3x-2y=9 x-3y=2 x+y=5 x+2y=3 y=x 2x+y=8
3x+2=y 5X+4=Y 7X+6=Y 9X+8=y 11x=y要如何计算
3x+2=y 5x+4=y 7x+6=y 9x+8=y 11x=y
y-3x=2,y-5x=4,y-7x=6,y-9x=8,y-11x=0方程组,
3x+2=y 5x+4=y 7x+6=y 9x+8=y 11x=y 联立方程 有的话
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
6(x-y)-2(x+y)=14 3(x-y)+(x+y)=5
{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1