October 2018 1 15 Report

Zadanie 7/133 (Matematyka)

Rozwiąż graficzne układy równań:

a) {x + y = 5

{x - y = 1

b) {4x = 8

{3y = 6x - 12

c) {3x - 2y = 1

{-x - y = -2

Dam najj !! Proszę o rozwiązanie ;)


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