2x(m+1)+(5-n)x=0 -(3n+2)y+5my=0怎么解
问题描述:
2x(m+1)+(5-n)x=0 -(3n+2)y+5my=0怎么解
答
2x(m+1)+(5-n)x=0-(3n+2)y+5my=0
2xm+2x+5x-nx=0 -3ny-2y+5my=0
2mx+7x-nx =05m-3n =2
2m+7-n=0