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

Question

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

anonymous · Answer

So far I have |dw:1372103410089:dw|

loser66 · Answer

you said, first ISOLATE x in the first equation, how do you do and where is it?

anonymous · Answer

Honestly.. I have no clue! Its like once I need the information, I just forget it..

anonymous · Answer

I'll have to go back to the lesson

loser66 · Answer

Good, do it, if still not get, back here.

anonymous · Answer

I will mate.. Thanks I'll let you know if I get it

loser66 · Answer

good. You will get, I believe that

anonymous · Answer

@loser66 I believe its -2y - 4 But im not quite sure

loser66 · Answer

-2y +4

anonymous · Answer

If you dont mind can you show me how you got that answer?

loser66 · Answer

-x -2y = -4 
+x both sides
+4 both sides

anonymous · Answer

Ohhhh well duh!!! THANKS A MILLION MATE! Your a great help!