kaylorb5446 kaylorb5446

13-12-2018
Mathematics

contestada

Solve the system of equations using elimination.

8x + 7y = -16
10x + 7y = -6

A)
(3, 6)

B)
(8, 5)

C)
(7, 10)

D)
(5, -8)

Respuesta :

kayleecook2003p91n17 kayleecook2003p91n17

13-12-2018

Answer: D.(5, -8)

Step-by-step explanation:

(Multiply by -1)-8x-7y=16

10x+7y=-6

2x=10

X=5

(Subsitite 5 into one) 10(5)+7y=-6

50+7y=-6

7y=-56

Y=-8

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