shamsalmulla7 shamsalmulla7 09-12-2021 Mathematics contestada Which system of equations is equivalent to the following system? (5 points) 2x + 4y = 14 4x + y = 20 a.2x + 4y = 14 −16x − 4y = −80 b.2x + 4y = 14 −4x + y = −20 c.4x + 8y = −28 4x + y = 20 d.−2x − 4y = 14 4x + y = 20