Odpowiedzi

2010-03-25T17:39:59+01:00
5(2+y)=4
10 + 5y = 4
5y = 4 - 10
5y = - 6
y = - 6/5 = - 1 i 1/5
1 5 1
2010-03-25T17:41:58+01:00
5(2+y)= 4
10+5y=4 /-10
5y= -6 / :5
y= -1,2
2 5 2
2010-03-25T17:53:53+01:00
5(2+y)=4
5*2+5*y=4
10+5y=4
5y=4-10
5y=-6/:5
y=-6/5
y=-1,2
1 5 1