Odpowiedzi

2010-03-18T19:44:34+01:00
C) -3(y/3+1)-2= 4(1-y)
-y-3-2 = 4-4y
-y+4y = 4 + 5
3y = 9
y = 3
d) 2(3a-2) - 6 = 4,5 ( 2a- 1) + 1/2
6a - 4 - 6 = 9a- 4,5 + 0,5
6a - 9a = - 4 + 10
-3a = 6
a = -2
2 5 2