Odpowiedzi

2010-03-03T12:53:39+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+8n

b)
0,2(x-5y) = 0,2x-y
3(0,5a+1) = 1,5a+3
1 5 1
2010-03-03T15:04:03+01:00
A) 3(x-3)=3x-9=-9+3x
5(y+z)= 5y+5z
4(3x-y)= 12x-4y= -4y+12x
3(4a-c)=12a-3c= 3c+12a
-2(7-4n)=-14+8n

b) 0,2(x-5y)= 0,2x-y= y+0,2x
3(0,5a+1)= 1,5a+3
3 5 3