birdie4
birdie4
08-02-2017
Mathematics
contestada
plz help with this!!!
Respuesta :
Аноним
Аноним
10-02-2017
4x - y = 61
2y = x
substitute x = 2y in first equaation:-
4(2y) - y = 61
7y = 61
y = 61/7
so x = 2 * 61/7 = 122/7
y = 8 5/7 and x = 17 3/7
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