Question

2x-3y=9. -5x-3y=30 elimination

Answer 1

X= -3 Y= -5

(-3, -5)

Answer 2

7x=-21

x=(-21÷7)

x=-3

then

2x-3y=9

(2×-3)-3y=9

-6-3y=9

-3y=9+6

-3y=15

y=(15÷-3)

y=-5