September 2018 1 8 Report

Rozwiąż równania metodą współczynników.

a) {2x+3y=18

{ x+y=7

b) {4x-3y=-26

{x+y=-3

c) {4x+3y=10

{3x+4y=11

d) {5x+2y+12

{2x+5y=9


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