方程组3X+3Y+2X-2Y=36 4X+4Y-5X+5Y=2 怎么化简啊!

3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2 解方程组 方程组3X+3Y+2X-2Y=36 4X+4Y-5X+5Y=2 怎么化简啊! 方程组x-2y=8,3x-4y=5,x=?,y=? 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：x+y/2+x-y/3=6 4(x+y)-5(x-y)=12 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 {3(x+y)-4(x-y)=11 {2(x-y)+5(x+y)=27 方程组4x+3y=320,5x+2y=330;怎么解 关于X,Y的方程组3X+2Y=2m+5与x-y=4m-5的解x,y满足x+2y y-3x=2,y-5x=4,y-7x=6,y-9x=8,y-11x=0方程组,