August 2018 3 11 Report
Rozwiąż podany układ równań metodą podstawiania .
c) x-2y =3
-2x +y = 0
x= 3+2y
-2(3+2y)+y = 0
x=3+2y
-6 - 4y +y = 0
x = 3 + 2y
5y = 6/:5
y =6
5
x= 3+2 * 6
_5
y= _ 6
5
x= 3 + 6
5
y = 6
5
x = 3 __6__
5





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