Answer:
The answer is (A) (-6,4).
Explanation:
First you have to multiply the first equation by 6 and the second equation by 4. Then next you subtract the second equation from 1.
30x + 24y = - 84
12x + 24y = 24
18x + 0. = - 108
=> 18x = - 108
=> x = - 108 / 18
=> x = - 6
Then for the next step
then put in x = - 6 in equation 2 and solve for y
( 3x + 6y = 6)
(3×(-6) + 6y = 6)
( - 18 + 6y = 6)
( 6y = 18 + 6 )
( 6y = 24)
(y = 4 )
(I really do hope this helps!!!)