方程组 3x-2y=-2,2x+3y=6 怎样求?要完整步骤,用加减消元法解~

解方程组 y=2x x+y=3 解方程组,x+y/2=3x-2y=10+6x+y/4, 数学问题方程组3分之x+y+2分之x-y=6 3（x+y)-2(x-y)=28方程组3分之x+y+2分之x-y=63（x+y)-2(x-y)=28 已知方程组{2x+y=6,x-3y=1,不解方程组,求7y(x-3y)²-(3y-x)²的值.已知方程组{2x+y=6,{x-3y=1.不解方程组,求7y(x-3y)²-(3y-x)²的值.已知方程组{2x+y=6，{x-3y=1.不解方程组，求7y(x-3y)²-(3y-x)³ 解下面方程组,x+y/3+x-y/2=6 3(x+y)-2(x-y)=28, 3/x+y+2/x-y=6,3（x+y)-2(x-y)=28解这个方程组 2元一次方程组 2/x+y+3/x-y=6 4(x+y)-3(x-y)=-20 方程组{x+y/3+x-y/2=6,3(x+y)-2(x-y)=28 方程组 (3/X+Y)+2/(X-Y)=6 3(X+Y)-2(X-Y)=28 方程组2分之x+y+3分之x-y＝6,2（x+y)-3x+3y=24 解方程组;x+y/2=x-y/3=6 4(x+y)-3(x-y)=-20 用换元法解方程组 2分之x+y+3分之x-y=6 2(x+y)+(x-y)=12 解方程组 X+Y/2+X-Y/3=6 4[X+Y]-5[X-Y]=2 解方程组2(x-y)/3-x+y/4=-1 6(x-y)-4(2x-y)=16 用换元法解方程组 2分之x+y+3分之x-y=6 2(x+y)+(x-y)=12 解二元一次方程组{x+y/2+x-y/3=6,4(x+y)-2=5(x-y) 解方程组2分之x+y+3分之x-y=6 4(x+y)-5(x-y)=2 解方程组 {(x+y)/2+(x-y)/3=6 5(x+y)-2(x-y)=4