August 2018 1 64 Report
Rozwiąż układy równań
0,03x-0,02y= -2
0,6x+0,5y=590

0,7x-0,25y=5
1,5x-0,75y=9

3(x+2) - 5(y-5)
_____ _____ = 2
2 4
x+6y= 2

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