Odpowiedzi

2009-11-01T20:03:33+01:00
2009-11-02T00:51:21+01:00
6x-12/3+ x-4y=6x+ x-4-4y=7x-4-4y
15a+20b/5-4a+8b/2=15a-4a+4b+4b=11a+8b
7k+21/14-3k-9/6=7k-3k+3/2-3/2=4k
4*3p+6/12+10-5p/15 *9=12p+1/2+10-45p/15=12p+10,5-3p=9p+10,5

3 2 3