November 2018 2 17 Report

1. Usuń nawiasy i sredukuj wyrazy podobne.

a.) -(3x+y-7)-5x-7+4y)

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

2. Zredukuj wyrazy podobne

a) 3b+5z+7b-2z

b.) 5y+3x-4x+6y-9x+7y


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