blahblah099
blahblah099
18-08-2016
Mathematics
contestada
how to solve 3x+y=10;x-4y=-1
Respuesta :
Panoyin
Panoyin
18-08-2016
3x + y = 10
x - 4y = -1
---------------
12x + 4y = 40
x - 4y = -1
13x = 39
x = 3
x - 4y = -1
3 - 4y = -1
-4y = -4
y = 1
(x, y) = (3, 1)
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