3x+2y /4= 2x+y+2/5 = - (x+5y/3)

问题描述:

3x+2y /4= 2x+y+2/5 = - (x+5y/3)

是化简!

3x+2y /4= 2x+y+2/5
2x+y+2/5 = - (x+5y/3)
弄成方程组做