September 2018 1 20 Report

matematyka z plusem do 2 gim zad 4 str 99

przykłady a c e

Rozwiąż układy równań

a / Klamra -3x = 12

--- x-y=1

c/ klamra - 4 y - x = 6

-- 17y = 0

e/ klamra u = 4 v

----- 5u - v= 10


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