Odpowiedzi

2010-03-09T20:34:41+01:00
5x - 1 = 7x - 6
5x - 7x = - 6 + 1
-2x = -5 / : ( 2 )
x = 2,5
2 5 2
2010-03-09T20:35:07+01:00
2010-03-09T20:36:06+01:00
5x-1=7x-6 = 10x-2=14x-12
1 5 1