Odpowiedzi

2010-03-22T13:59:34+01:00
7.5x-5>2x+4
5x-2x>4+5
3x>9/:3
x>3
2010-03-22T14:06:23+01:00
Zadanie5
3(2x-1)+5x=2-[4x-(1-2x)]
6x-3+5x=2-[4x-1+2x]
6x-3+5x=2-4x+1-2x
6x+5x+4x+2x=2+1+3
17x=6/17
x=6/17