September 2018 1 12 Report

1. Rozwiąż układy równań metodą podstawiania.

a)3x+2y=2

3x+y=1½

b)x+y=0

2x+4y=1

c)3x-2y=3

3x+y=1½

d)x+2y= -½

3x+4y= -1


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