Odpowiedzi

2010-04-15T12:56:33+02:00
1/2x+5=x+8
1/2x-x=8-5
-1/2x=3 /:(-1/2)
x=-6
2010-04-15T12:58:07+02:00
1/2x+5=x+8
1/2x-x=-5+8
-1/2x=3 /*(-1)
1/2x=-3
x=-6
2010-04-15T12:59:47+02:00
½x+5=x+8
½x-x=8-5
-½x=3
x=3:-½
x=-6