January 2019 1 23 Report
Wyznacz zmienna x z pierwszego rownania a nastepnie rozwiaz metoda podstawiania ukladu rownan.

x-2y=12
3x-y=56



Rozwiaz uklady rownan
metoda podstawiania

a) 3x-10y+2=0
6x-5y=3(2x+y-1)



b) x-2(y+1)=5
4(x+3)-2(1-y)=18

Blagam na szybko!!!!!
Musza byc wszystkie obloczenia.


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