解方程组555553x+2y=6 ①5x-2y=64 ②3x+4y=11 ①4x-5y=-37 ②
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解联立方程组 x/x+y=5/8 x/x+y+6=2/3
x+y+xy=5 (x^2)y+x(y^2)=6 解方程组
解方程组{5x+2y=6 ① 2x+5y=8 ②
解方程组 {2x-5y=-3 ① {4x+10y=6 ②
解方程组(x+y)(x-2y)=-5 (x-y)(x+2y)=7
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
解方程组6(x-y)-7(x+y)=21 2(x-y)-5(x+y)=-1
解方程组:{二分之x+y+二分之x-y=6,4(x+y)-5(x-y)=2()
解方程组:x+y/2+x-y/3=6 4(x+y)-5(x-y)=12
解方程组:3(x+y)+2(x-y)=11,6(x+y)-5(x-y)=13.
解方程组:x+y/2+x-y/3=6,(x+y)+5(x-y)=38 谢.
解方程组 2x+y=3,x+2y=-6解方程组 x+5y=4,3x-6y=5
1/2x-2y=-74,x-6y=-12解方程组,x/5-y/2=2,2x+3y=4解方程组
解方程组:x-2y/3-X+2Y/2=6/7①5(x-2y)-4(x+2y)=21②
解分式方程组解方程组:① 1/x+2/y=5 ② 2/x-1/y=0