Solve the following system using substitution:
y=-4x-2
y=x+3

Question

Solve the following system using substitution:
y=-4x-2
y=x+3

anonymous · Answer

substitute y for x+3
solve for x
final solution should be x= -1

anonymous · Answer

could you show me how you got that?

anonymous · Answer

Sure 
Like I said your going to substitute y for x+3
so your going to rewrite you problem as..
x+3=-4x-2
The next thing you need to do is get rid of one of the x's so your going to subtract x from both sides so your new equation is..
3=-5x-2
(Because its understood that x=1)
Your next step is to add 2 to both sides..
5=-5x
Now we want to get x by itself so we divide -5 on both sides, Giving you your final answer of -1=x

anonymous · Answer

thank you so much!!!! :)

anonymous · Answer

very welcome:)