September 2018 1 22 Report

rozwiaz uklady rownan metoda podstawiania

DAM 25 PKT!! prosze pomóżcie :)

1) -2x+5y=-10

7x-4y=8

2) 9x+8y=1

5x-6y=11

3) 3x-2y=6

x-4=0

4) 3x+y=1

y+2x=0


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