Odpowiedzi

2010-02-16T18:02:56+01:00
A)3(x-3)=3x-9
5(y+z)=5y+5z
4(3x-y)=12x-4y
-2(7-4n)=-14+8n
b)1/2(6b-3)=3b-1,5
0,2(x-5y)=0,2x-1y
3(1/3a+1)=1a+3
49 4 49
2010-02-16T18:04:48+01:00
A) 3x-9
5y+5z
12x-4y
12a-3c
-14+8n
b)2z+1
-2b+1
0,2x-1y
1a+3
29 4 29
2010-02-16T22:36:55+01:00
A)
3(x-3) =3x-9
5(y+z) = 5y+5z
4(3x-y) = 12x-4y
3(4a-c) = 12a-3c
-2(7-4n) = -14+6n

b)
1/2(4z+2) = 2z+1
-1/3(6b-3) = -2b+1
0,2(x-5y) = 0,2x-y
3(1/3a+1) = a+3

75 4 75