Respuesta :
Answer:
Line 1
Step-by-step explanation:
Since x=3 and y=-6, just plug those two values in both of the equations.
Line1: (3)-(-6)=9 This would be the answer
Line2: 3(3)+3(-6) = -9 This is the incorrect answer because it should 3
it’s line 1 because if you plug in the ordered pair given it will equal 9 :)