September 2018 2 7 Report

oblicz jednomiany (chyba bo niewiem dokładnie bo to było na kartkówce)

zad1

x+5+x-3=

2x+8y+x-6y=

-2a+b-a-2b+3a=

6a-4b-8a+2b=

3,6x-0,8y+0,6x-0,2y=

zad2

3x-4y-x-8+2y dla x=-2,y=6


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