2x+4y-5x-y+12-11
1个回答
2x+4y-5x-y+12-11
=3y-3x+1
相关问题
12:11=x:y,11x-1/5=12y-35,y=?大米：x 面粉：y
4x+9y=12 3y-2y+5z=11 5x-6y+7z=13
3/x+4/y=2 5x-y=11
11X-Y=12 11Y-X=-12
2X+3=11-6x 2x-1=5x-7 3(y+4)=12
4x-3y-z=-11,2x+2y+z=11,-2x+5y-2z=6
|2x+y-11|+2(5x-4y-8)=0
x^5+3x^4y-5x^3y^2+4xy^4+12y^5
5x-7y=12,11x+19y=36
设A={（x,y)|5x-4y=11},B{(x,y)|12x+3y=16},求A交集B.