Question

Please answer!
This is substitution btw.

Answer 1

Answer:

here's the answer of this question

please mark as brainlist...

Answer 2

Step-by-step explanation:

so here -y = x (i)

now substituting (i) in (ii)

9x - 7y = -16

9(-y) - 7y = - 16

-9y - 7y = -16

-16y = -16

y = 1

so therefore x = -(1)

x = -1