Question

FAN AND MEDAL!!!
For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you substitute into the second equation?

-x - 2y = -4
3x + y = 12

-2y - 4
2y - 4
2y + 4
-2y + 4

Answer 1

Are those the answer choices?

Answer 2

yes @lovingod786

Answer 3

plz help guys!

Answer 4

What do you think. WHich one?

Answer 5

Pick one you think and I will help from there.

Answer 6

I think it might be either B or C

Answer 7

Ok in order to isolate x in the first equation. What do you think you first step should be?

Answer 8

add 2y to both sides?

Answer 9

It is B

Answer 10

ty!

Answer 11

It could be B but it also could be D depending if they want your to get rid of the - sign

For instane -x = 2y - 4 and you could use this for a subsitution but if you get ride of the -, which they probably want you to do the answer is D