解方程组{4/2x+y+6/2x-y=3,9/2x-y-1/2x+y=1
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解方程组{4/2x+y+6/2x-y=3,9/2x-y-1/2x+y=1解方程组{4/2x+y+6/2x-y=3,9/2x-y-1/2x+y=1解方程组{4/2x+y+6/2x-y=3,9/2x-y-
解方程组{4/2x+y+6/2x-y=3,9/2x-y-1/2x+y=1
解方程组{4/2x+y+6/2x-y=3,9/2x-y-1/2x+y=1
解方程组{4/2x+y+6/2x-y=3,9/2x-y-1/2x+y=1
x =2
y =-2
分别将1/(2x+y),1/(2x-y)视为整体a,b,解出a,b后再解x,y
可以解得:1/(2x-y)=1/7,1/(2x+y)=15/28
4/(2x+y)+6/(2x-y)=3 12/(2x+y)+18/(2x-y)=9
9/(2x-y)-1/(2x+y)=1 18/(2x-y)-2/(2x+y)=2 36/(2x-y)-4/(2x+y)=4
14/(2x+y)=7 2x+y=2
42/(2x-y)=1 2x-y=42
4x=44 x=11
2y=-40 y=-20
解方程组,x+y/2=3x-2y=10+6x+y/4,
解方程组2(x-y)/3-x+y/4=-1 6(x-y)-4(2x-y)=16
解方程组:2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16
解方程组;x+y/2=x-y/3=6 4(x+y)-3(x-y)=-20
解方程组 X+Y/2+X-Y/3=6 4[X+Y]-5[X-Y]=2
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
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
解方程组3(x+y)-4(x-y)=4,x+y除以2+x-y除以6=1
解方程组⑴(x+y)/2-(x-y)/3=6,⑵3(x+y)=4(x-y)
解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3
解方程组4(x+y)-3(x-y)=14;(x+y)/2+(x+y)/3=6
解二元一次方程组{3(x+y)-(x-y)=4,x+y/2+x-y/6=1
解方程组:x+y/2+x-y/3=6 4(x+y)-5(x-y)=12
解方程组{2(x-y)/3 - x+y/4=-1 6(x+y)-41(x-y)=12