Carloscruz
Carloscruz
28-10-2015
Mathematics
contestada
{3x-y=10
{2x+y=5
Answer y=
×=
Respuesta :
Panoyin
Panoyin
28-10-2015
3x - y = 10
2x + y = 5
5x = 15
5 5
x = 3
3x - y = 10
3(3) - y = 10
9 - y = 10
- 9 - 9
-y = 1
-1 -1
y = -1
(x, y) = (-1, 3)
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