rtyry

Question

rtyry

anonymous · Answer

This is a terrible question, in my opinion, because you could argue a case for 2 of these answer choices depending on whether you prefer to add the 2 equations together or subtract them. I prefer adding..so lets assume we're going to add them together. What will I want to add that - 3y to that will make the y's go away?

hihi67 · Answer

Yeah, the question is weird....

hihi67 · Answer

But I would say B

anonymous · Answer

for elimination you need to get rid on one variable in this case getting rid of y would be easier in this case and yeah this is a weird question but I would multiply the first equation by -3 or A

hihi67 · Answer

Cause -3y times -3 is 9y, which is easier.

hihi67 · Answer

And then -1 times -3 is 3, easy number also.

anonymous · Answer

Definitely not B. A case could be made for either A or C

hihi67 · Answer

Why not?

hihi67 · Answer

It makes the best sense.

anonymous · Answer

the shortest way would be via A since if you multiply the 1st equation by 3 you would have to multiply the 2nd equation by -1 in order to eliminate anything

anonymous · Answer

I would go with A, too.

anonymous · Answer

Multiply the first equation by -3 and you get - 15x + 3y = -15.
You can now add that directly to the 2nd equation, and the y goes away.