A system of equations is shown.
10x + 6y= -12
4x + 2y= -8
which statement bout the ordered pair (-6, 8) is true 
a.  it is not a solution to either equation
b.  it is the only solution to the system
c.  it is a solution to the first but not the second
d.  it is one of many solutions
why is the option you choose the right answer