5X+9Y=37 ｛ 6X+7Y=33这是一个方程组请那位解析出来要过程

{6(x-y)-7(x+y)=21 {2(x-y)-5(x+y)=-1 3x+2=y 5x+4=y 7x+6=y 9x+8=y 11x=y 联立方程 有的话 3x+2=y 5x+4=y 7x+6=y 9x+8=y 11x=y 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怎么解 y-3x=2,y-5x=4,y-7x=6,y-9x=8,y-11x=0方程组,无 3x+5y-(x+y)=6 2(x+y)-3x=-7 帮忙解一些方程组(1)3x-2y=6 2x+3y=17 (2)5x+6y=15.2 3x-2y=-0.4(3)2(x+y)-3y=7 4(x-9)=3(y-2)(4)3(x+y)-4(x-y)=4 x+y/2+x-y/6=1 把(x-y)看作一个整体,化解:5(x-y)+2(x-y)-4(x-y)= 3(x-y)把(x-y)看作一个整体,化解:5(x-y)+2(x-y)-4(x-y)=3(x-y)²-4(x-y)+7(x-y)-6(x-y)²= 4.4x+6y=54 9x+2y=87 5.2x+y=7 2x+5y=19 6.x+24.4x+6y=54 9x+2y=87 5.2x+y=7 2x+5y=19 6.x+2y=21 3x+5y=56 x+y=16 5x-6y=33 X+Y=9 6X+7Y=59 (x+y)/6+(x-y)/10=1,(x+y)/6-(x-y)/10=5 4(x-y)-3(x-y)=9 5(x-y)+2(x-y)=11 Y=x+3 7x+5y=9 y-x=3 7x+5y=-9 y=x+3 7x+5y=9 解方程组(x+y)(x-2y)=-5 (x-y)(x+2y)=7