Question

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)

Answer 1

Answer: D.(5, -8)

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