February 2019 0 15 Report
Rozwiąż podane układy równań. \left \{ {{x+y=2} \atop {x-y=8}} \right. \\ \left \{ {{3x+y=11} \atop {2x-y=4}} \right. \\ \left \{ {{4a+3b=11} \atop {4a-3b=5}} \right. \\ \left \{ {{6x+2y=8} \atop {4-4y=0}} \right. \\ \left \{ {3x+y=-1} \atop {4x+3y=2}} \right.

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