方程组(3x-27)/6+(3x+2y)=1 (3x-2y)/6-(3y+2y)=5 求解!快!
解方程组 {3(x+y)-4(x-y)=11 {2(x-y)+5(x+y)=27全过程、快
二元一次方程组求解 3x+2y=34 12x+6y=74
解二元一次方程组:{5(x+y)+3(x-y)=2{7(x+y)-3(x-y)=-6
x+y/2+x-y/3=6,4(x+y)-5(x-y)=2用加减消元法解方程组
解方程组 {(x+y)/2+(x-y)/3=6 5(x+y)-2(x-y)=4
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
解方程组:x+y/2+x-y/3=6 4(x+y)-5(x-y)=12
2(x+y)-3(x-y)=1 6(x+y)+7(x-y)=51 解方程组
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﹛2(x+y)-3(x-y)=1 6(x+y)+7(x-y)=51
一道二元一次方程组!3(x+y)-4(x-y)=4,(x+y)/2+(x-y)/6=1