2. Zapisz w prostszej postaci:
a) 4x – 5x - 3x =.
b) -9x + 4x + 3y - 6y
c) 3x + 9-x-5 =
d) 15y : 3 =
e) 9 - 3y =
f) 3(7a - 2) =
g) 2(4x – 5) - 2(3x –6y)=.
h) (32 - 7) (4x - 5y) =.
1) (3x - 61)(4x – 5y) =.
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