解方程组 {3/(x+y)=4/(x+y) { 6x+y=4(2x-y)+16 具体过程
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解方程组 {3/(x+y)=4/(x+y) { 6x+y=4(2x-y)+16 具体过程
解方程组 {3/(x+y)=4/(x+y) { 6x+y=4(2x-y)+16 具体过程
解方程组 {3/(x+y)=4/(x+y) { 6x+y=4(2x-y)+16 具体过程
3/(x+y)=4/(x+y),x+y=0
6x+y=4(2x-y)+16
6x+y=8x-4y+16
2x-5y+16=0
所以x=16/7,y=-16/7
解方程组:2(x +y)-3(x-y)=3;4(x+ y)+ 3(x-y)=15
解方程组(三分之x+y)+y=6,3(x+y)-y=24
2(x+y)-(x-3y)=13 4(x+y)+3(x-3y)=1解方程组 2(x+y)-(x-3y)=13 4(x+y)+3(x-3y)=1
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1
解方程组:{4x+5(x-y)=30,4y-3(x-y)=6
解方程组x+y/3=x-y/4 2x+3y=11
解方程组3x+5(x+y)=2 3y-2(x+y)=4
解方程组,x+y/2=3x-2y=10+6x+y/4,
方程组4=x+y,8=3x-y求x,y的解
解方程组(3x+2y)/4=x+3/4y=3(x-2)+y
解方程组:4(x+1)=3(y+3) x-2y=7y-6x/3
利用整体思想解方程组3x+5(x+y)=36,3y+4(x+y)=0
解方程组;x+y/2=x-y/3=6 4(x+y)-3(x-y)=-20
解方程组(x/4)-(1/3y)=1.3x+4y=12
解二元一次方程组3(x+y)-4(x-y)=4 x+y/2+x-y/6=1
解方程组2(x-y)/3-x+y/4=-1 6(x-y)-4(2x-y)=16
解方程组3(x+y)-4(x-y)=4和(x+y)/2+(x-y)/6=1kkkkkkkk
3(x+y)—4(x-y)=4,(x+y/2)+(x-y/6)=1.解方程组