Odpowiedzi

2010-03-22T17:00:28+01:00
1/3x+1/2x+7=x /*6
2x+3x+42=6x /-5x
42=6x-5x
42=x
2010-03-22T17:01:56+01:00
1/3x + 1/2x + 7 = x / *6 (obustronnie razy 6)
2x + 3x + 42 = 6x
2x + 3x - 6x = -42
-x = -42 /*(-1)
x = 42