September 2018 1 12 Report

1..Wykonaj oddejmowanie

a) (6a+2a+1)-(-3a-2a+5)=

2..Usuń nawiasy i zredukuj wyrazy podobne:

a) 5x+(2x-7)-9x-(-3x+8)+20-8x=

b) -5x+(-2y+4x)-(7x-8y)-x+(2-6y)=


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