2(x+4)=9-(x-3) 2x+8=9-x+33x=4 x=4/3
2X+8=9-X+33X=12-83X=4X=4/3
2x+8=9-x+3解出3x=4 x=4/3
2(x+4)=9-(x-3) 2x+8 =9-x+12 2x+x =9+12-8 3x = 13 x = 13/3
晕,这种题还要问啊