4x+3y=6① 2x+y=4②怎么解

4x+3y=6① 2x+y=4②怎么解 3x+2=y 5x+4=y 7x+6=y 9x+8=y 11x=y怎么解 二元一次方程(x+y)/2+(x-y)/3=6,4(x+y)-5(x-y)=2怎么算 （5）解方程组：2分之x+y+3分之x-y=6 ,4（x+y）-5（x-y）=2我知道：(x+y)/2+(x-y)/3=6.①用①×63(x+y)+2(x-y)=36即5x+y=36 后面怎么写呢? 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 {3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1 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/2=6 3(x+y)=4(x-y) x+y/3+x-y/2=6 4(x+y)-2(x-y)=40 方程2x+y=3,4x-y=-1,6x+y+z=8怎么解 4x方y/(x-2y)(x+2y)怎么算[x方/x-2y]-4x方y/(x-2y)(x+2y)=? x^2-4xy+3y^2=（x-3y)(x-y)x^2-4xy+3y^2 怎么分解成（x-3y)(x-y) 求下列解方程组完整过程{5x=2y① 50x+200y=4400②{2/3（x-y)-x/4+y=-1① 6(x+y)-4(2x-y=16② 解二元一次方程.①y=2x-3 3x+2y=8 ②y=x+2 6x+5y=-1 ③3x+5y=11 x+4y=15 x^2+2y^2-2x+y-3=0与2x^2+5y^2-4x+y-6=0 的方程组怎么解 怎么解二元一次方程组2(x-y)/3-x+y/4=-1和6(x+y)-4(2x-y)=16