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26-06-2017
Mathematics

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WHICH ANSWER IS CORRECT!!????

WHICH ANSWER IS CORRECT class=

Respuesta :

26-06-2017

B. x=-8, y=-17.

First equate the two equations:

3x+7 = x-9

then simplify

2x = -16
x = -8

so y = x-9 = -8-9 = -17

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