pawsusana pawsusana

10-05-2017
Mathematics

contestada

Elimination
y= -x-1
y= -5x-17

Respuesta :

mreijepatmat mreijepatmat

15-05-2017

y= -x-1
y= -5x-17 Multiply the 1st equation by (-1) & then add up the result to the 2nd one:
-y = -1(-x) -1(-1)
y = -5x-17
-----------------
0y = -4x-16 ===> x=-4 & y=3

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