Odpowiedzi

2010-03-14T14:04:27+01:00
A) -(y-x+2z)=
-y+x-2z
b)-(-(5w+1))=
-(-5w-1)=
5w+1
c)-(-(n-1))=
-(-n+1)=
n-1
d)-(-(x+y+z-a))=
-(-x-y-z+a)=
x+y+z-a
e)-(-(y-x)+(a+2b))=
-(-y+x+a+2b)=
y-x-a-2b
f) -(-(-5x+1)+(8+-(x-1)))=
-(5x-1+8x-x+1)=
-5x+1-8x+x-1
9 4 9
2010-03-14T14:06:14+01:00
A) -y+x-2z
b)5w+1
c)n-1
d)x+y+z-a
e)y-x+a+2b
f)-5x+1+8+x+1
;)
3 4 3
2010-03-14T14:06:31+01:00
A) -y+x-2z
b) 5w+1
c) n-1
d) x+y+z-a
e) y-x-a-2b
f) -5x+1-8+x+1=-4x- 6
4 4 4