Cevaplar

2012-11-19T18:35:30+02:00

7x+21+2x-20=9

 

9x=8

x=8/9 olması lazım .........

0
2012-11-19T18:36:14+02:00

7x+21+2x-20=9

9x=8

x= 8/9 

2 3 2