tris8
tris8
14-09-2016
Mathematics
contestada
How do I solve 3x-5y=9;x=-1,0,1
Respuesta :
nobillionaireNobley
nobillionaireNobley
16-09-2016
3x - 5y = 9
When x = -1
3(-1) - 5y = 9
-3 - 5y = 9
5y = -3 - 9 = -12
y = -12/5
When x = 0
3(0) - 5y = 9
-5y = 9
y = -9/5
When x = 1
3(1) - 5y = 9
3 - 5y = 9
5y = 3 - 9 = -6
y = -6/5
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