Choose the equivalent system of linear equations that will produce the same solution as the one given below.
6x + 2y = -6
3x - 4y = -18

12x + 4y = -12
15x = -30
8x + 4y = -4
14x = -10
6x - 8y = -36
-6y = -42
6x - y = 15
3y = -9

Question

Choose the equivalent system of linear equations that will produce the same solution as the one given below. 
6x + 2y = -6
3x - 4y = -18

 	
	12x + 4y = -12
15x = -30
	8x + 4y = -4
14x = -10
	6x - 8y = -36
-6y = -42
	6x - y = 15
3y = -9

anonymous · Answer

i thought there might be some snappy way to do this, but down i do not see it
guess we need to solve 
$$6x+2y=-6\
3x-4y=-18$$ and get 
$$x=-2,y=3$$ and check against the others

anonymous · Answer

fortunately we do not have too far to check , since it works for the first one 
$$12x+4y=-12\
15x=-30$$

jolo_yolo · Answer

oh okay so the answer turns around to A