August 2018 3 14 Report
Zad.9 . Uzupełnij wpisując odpowiednie wyrażenia algebraiczne.

a) x + ..... = y
b) x - y + ..... = z
c) x - y + ..... = y - x


zad.10

a) x - 3y - 2x + 6y =
b) 2y - 5 - 3y - 4 - 8y + 9 =
c) 2x - 4 + 3x - 2 =
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