Oblicz:
(-2,7-0,9y):(-3)
(2,05x-0,25y) : 0,25
(x-4y+2z):(-1)
Błagam o pomoc (nie kumam wyrażeń algebraicznych)
(-2,7-0,9y):(-3)=0,9+0,3y
(2,05x-0,25y) : 0,25=8,2x-y
(x-4y+2z):(-1)=-x+4y-2z
a)
(-2,7-0,9y):(-3)=(2,7+0,9y):3=0,9+0,3y
b)
(2,05x-0,25y):0,25=8,2x-y
c)
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(-2,7-0,9y):(-3)=0,9+0,3y
(2,05x-0,25y) : 0,25=8,2x-y
(x-4y+2z):(-1)=-x+4y-2z
a)
(-2,7-0,9y):(-3)=(2,7+0,9y):3=0,9+0,3y
b)
(2,05x-0,25y):0,25=8,2x-y
c)
(x-4y+2z):(-1)=-x+4y-2z