September 2018 1 24 Report

Rozwiąż układy równań (to powinno być wszystko w klamerce ale ja nie umiem jej robić )

a) x=-y

x - y = 6

b) y = x + 3

2x + y = 9

c) x - 4y = 15

y = 4x

d) -3x = 2y

y = 1 - x


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