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24-01-2017
Mathematics

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x = 1 + y
3x - 6y = -12
a. (-2,-1)
b. (2,3)

Respuesta :

24-01-2017

3 (1 + x) - 6y = -12
3 + 3y - 6y = -12
-6y = -9
y = -1.5

x = 1 + (-1.5)
x = -0.5

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