解方程组｛5x+2y=6 ① 2x+5y=8 ②

解方程组(x+y)(x-2y)=-5 (x-y)(x+2y)=7 x+y+xy=5 (x^2)y+x(y^2)=6 解方程组 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 解联立方程组 x/x+y=5/8 x/x+y+6=2/3 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｛5x+2y=6 ① 2x+5y=8 ② 解方程组 ｛2x-5y=-3 ① ｛4x+10y=6 ② 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+y=2x+y+1=5x+2y+1 解方程组3x+5(x+y)=2 3y-2(x+y)=4