September 2018 2 21 Report

Wykonaj działania i zredukuj wyrazy podobne :

a) -4x + (5x - 2y + 3)

b) (3a + 2b) + (-3a + b + 1)

c) 16x - (9x + 2y - 7)

d) (4a + 7b) - (2a + 3) + (a + 2b)


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