解方程组.3x-2y=12 5x-3y=19

解方程组：x+y/2+x-y/3=6 4(x+y)-5(x-y)=12 解方程组.3x-2y=12 5x-3y=19 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+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12) 解二元一次方程组:{5(x+y)+3(x-y)=2{7(x+y)-3(x-y)=-6 3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2 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 {3(x+y)-4(x-y)=11 {2(x-y)+5(x+y)=27全过程、快 解方程组{(x-2)(y+3)=(x+1)(y-1) {(x+1)(y+1)=(x-1)(y+5) 解方程组 {3(x+y)-4(x-y)=11 {2(x-y)+5(x+y)=27 解方程组：x+2y=5m,x-2y=9m,3x+2y=19