December 2018 2 5 Report
Siemka, potrzebuję pomocy. Nie za bardzo radzę sobie z matematyką..
Pomoglibyście? Na dziś ;c
Daje naj! ^^ Błagam o pomoc!
a)
(3x - 2a) - (-2a + 5x) - (8 xx) =
b)
(x-y) - (x-y) - (x+y) - (-y-x) =
c)
(4b + a) - (a - 4b) - (a + b) =
d)
(2x + 2y) - (x - y) - (4x - 2y) =


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