3/(X-Y)+10/(X+Y)=-5 2/(X-Y)-15/(X+Y)=1 解分式方程组_数学解答

3/(X-Y)+10/(X+Y)=-5 2/(X-Y)-15/(X+Y)=1 解分式方程组

人气：294 ℃　时间：2020-04-05 08:56:50

解答

x= -3;y= -2;
先解 3x +10y = -5 2x -15y = 1 得到x,y 后
再算X-Y = 1/x X+Y = 1/y；