October 2018 2 27 Report

Proszę o szybkie rozwiązanie ;)

Rozwiąż graficznie i algebraicznie układy równań:

a) 2x + y = 9 d) 2x + y - 4 = 3 (x-y)

x- y = 3 4 (x + y) = 7x + y -6

b) 2x + 3y = 1

1/2x - y = 2

c) 4x + 8 = 1 - 5y

3 - 2x = 3y +6

Dam NAJ!!


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