March 2019 0 54 Report
Rozwiąż układ dowolną metodą, PROSZĘ O POMOC
d) 5y-x=-30+4y
3x=21-2y
e)-x-8y=3-5x-y
-15+3x+7y=-10-7y
f)2x+12+6y=-7+3y
-6x-6y-20=22
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