yaboyyyyyy5
yaboyyyyyy5
25-07-2017
Mathematics
contestada
which one is it? need help please
Respuesta :
choixongdong
choixongdong
25-07-2017
y - 1/3x = - 10 (re-write)
y + 2x = 4
--------------------subtract
-2 1/3x = -14
-7/3x = -14
x = -14 (-3/7)
x = 6
2x + y = 4
2(6) + y = 4
y = 4 - 12
y = -8
(6, -8)
answer
C. (6, -8) (third choice)
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