September 2018 1 12 Report

Proszę o pomoc zadanie z matematyki...... Rozwiąż układy równań.

\left \{ {{4y-x=6} \atop {17y=0}} \right

\left \{ {{a=b} \atop {2a+b=9}} \right

\left \{ {{u=4v} \atop {5u-v=10}} \right

\left \{ {{3r=s} \atop {3r+s=24}} \right

Za dobre rozwiązanie daje 14 pkt


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