Which system of equations has the same solution as the system of equations shown below?
6x + 2y = 10
8x + 4y = 12

a. 6x + 2y = 10
4x = – 8

b. 6x + 2y = 10
– 4x = – 8

c. 10x = 16
8x + 4y = 12

d.– 2x = 4
8x + 4y = 12