Find the value of q in the system so that the solution to the system is

x-3y=4
2x+qy=8

 x -3y = 4  multiplie both sides by -2 => -2x +6y = -8 
2x +Qy = 8

-2x +6y = -8
 2x +Qy = 8
assume the same terms 
  0 6y +Qy = 0

6y +Qy = 0 

Qy = -6y  divide both sides by y and will get 

Q = -6
 

Answer choices

Thats where they was ported and the fields that noone really knew much about needed tended, so they put slaves out there do free work and huge profits and so on the north decided to hold its own and was more different way of survival did not have same climate conditions to afford protecting slaves from winter so expenses be diff from south