满足2x-3y=11-4m和3x+2y=21+5m的x,y,也满足x+3y=10+7m求m

（初一二元一次方程问题）已知满足2x-3y=11-4m和3x+2y=21+5m的x、y,也满足x+3y=10+7m,求m 已知满足2x-3y=11-4m和3x+2y=21-5m的x、y也满足x+3y=20-7m，则m的值为 ___ ． 已知方程组5x-y=m-2 ,x 3y=m 2的解也满足X-Y=2M-7,求M的值 已知X、Y满足2X-7Y=3M,X+2Y=4m+5,且X+Y=0,求M的值 已知x,y满足2x-7y=3m,x+2y=4m+5,且x+y=o,求m的值 x,y的方程组2x-y=4m+3和2y-x=m-4的解满足x+y=3,求m的? 已知x,y,m同时满足2x-3y=11-4m,3x+2y=21-5m,x+3y=20-7m,求m的值 已知满足方程2x-3y=m-4与3x+4y=m+5的x、y也满足方程2x+3y=3m-8,求m的值 已知x.y满足2x-y=3m,x+2y=4m+5,且x+y=0,求m的值 已知x,y满足2x-y=3m,x+2y=4m+5,且x+y=0,求m的值 已知x.y满足2x-y=3m,x+2y=4m+5,且x+y=9,求m的值 整体求值 已知关于x,y的方程组2x-3y=11-4m/3x+2y=21-5m的解满足方程x+3y=20-7m,求m的值.求具体解