20-06-2017
Mathematics

contestada

Which ordered pair is the solution to the system of linear equations y = 5x + 8 and y = -4x - 1?
a. (1, -3)
b. (3, -1)
c. (-1, 3)
d. (-3, 1)

Respuesta :

21-06-2017

c.) (-1,3)
y=5x+8
y=-4x-1
5x+8=-4x-1
5x+4x=-1-8
9x=-9
x=-1
5(-1)+8
-5+8=3
y=3

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