September 2018 1 13 Report

Rozwiąż układy równań:

2y=8x

4x-3y=9

x=4y

2x-3y=15

x=2y-1

x-3y=7

a=3b

2a+3b=-2

a=4b-3

2a-3b=8

x=4y+1

2x-7y=-3

Z góry dziękuję :)


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