September 2018 3 18 Report

Zredukuj podane wyrażenia algebraiczne:

A. (7a+4b-2c+5)+(4a-6b+5c-8)

B. -5a+(6b-c+9)-(5b+8c-5)+6a

C. 6b+c-5a+9-(8a+2b-5c+20)

D. -(-5a+3b-4c-6)-(-8b+4a-5)+8c


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