Seudónimo
Seudónimo
06-06-2016
Mathematics
contestada
Solve mathematics problem, in photo, please:)
Respuesta :
meerkat18
meerkat18
06-06-2016
x - 2y = 10
3x + 2y = 14
x = 10 + 2y
3(10+2y) + 2y = 14
30 + 6y + 2y = 14
8y = 14 - 30
8y = -16
y = -16/8
y = -2
x = 10 + 2(-2)
x = 10 - 4
x = 6
3x + 2y = 14
3(6) + 2(-2) = 14
18 - 4 = 14
14 = 14
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