Which statements are true about the ordered pair (1,2) and the system of equations? y=-2x+4 7x-2y=3 select all that apply. A.When (1,2) is substituted into the second equation,the equation is true. B.The ordered pair (1,2) is not a solution to the system of linear equations. C.When (1,2) is substituted into the second equation, the equation is false. D.When (1,2) is substituted into the first equation , the equation is false. E. The ordered pair (1,2) is a solution to the system of linear equations. F. When (1,2) is substituted into the first equation, the equation is true