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)

The solution would be D) (5, -8)

Step-by-step explanation:

To use this method, start by multiplying the second equation by -1. Then add the two equations together.

8x + 7y = -16

-10x - 7y = 6

-2x = -10

x = 5

Now that we have the value of x, use it to solve either equation for y.

10x + 7y = -6

10(5) + 7y = -6

50 + 7y = -6

7y = -56

y = -8

question: match the eqaution with its graph -8x - 5y = 40

answer: 8 x 5 = 40

x= absiss

y= orderly

so you have a proportional graph

question answered by

(jacemorris04)