HURRY PLZ

A system of equations is given below:


y = –2x + 1

6x + 2y = 22


Which of the following steps could be used to solve by substitution?


6x + 2(−2x + 1) = 22

−2x + 1 = 6x + 2y

6(−2x + 1) + 2y = 22

6(y = −2x + 1)