October 2018 2 9 Report

Proszę o pomoc bo ja tego nie kapuje

Zad.1

5x+2=32

5x-5=20

9x+13=50

Zad.2

-0,3x+0,7x=12

0,25y+0,75y+0,5y=3

-0,60y+1=121


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