Question

PLEASE HELP! WILL UPVOTE!

Which ordered pair is the solution to the system?

{2x−y=15
{4x+3y=−5

(3, −12)

(−1, 3)

(4, −7)

(−5, −25)

Answer 1

bring the first one in (3, −12)
2x3 + -(-12)
=6+12≠15
2. (−1, 3)

2(-1)-3
=-2−3≠15

3. (4, −7)
2x4-(-7)
=8+7=15

4x4+3(-7)
=16-21=-5
then you get the answer~