3x+2y /4= 2x+y+2/5 = - (x+5y/3)
问题描述:
3x+2y /4= 2x+y+2/5 = - (x+5y/3)
急
是化简!
答
3x+2y /4= 2x+y+2/5
2x+y+2/5 = - (x+5y/3)
弄成方程组做