keirra123
keirra123
23-08-2016
Mathematics
contestada
5x + 2y =12
- 6x - 2y = - 14
Respuesta :
Kunchan
Kunchan
23-08-2016
5x + 2y = 12
-6x - 2y = -14
Add them
-x = -2
x = 2
5x + 2y = 12
(5*2) + 2y = 12
10 + 2y = 12
2y = 2
y = 1
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