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mariannu
Group Title
Solve the linear system using elimination.
Hello you guys. I just want to know how you flip it.
2x  y= 11
y = 2x 13
 one year ago
 one year ago
mariannu Group Title
Solve the linear system using elimination. Hello you guys. I just want to know how you flip it. 2x  y= 11 y = 2x 13
 one year ago
 one year ago

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Mertsj Group TitleBest ResponseYou've already chosen the best response.1
rewrite the second equation by adding 2x to both sides.
 one year ago

chrismoon Group TitleBest ResponseYou've already chosen the best response.0
for the second equation \[y=2x13\] you already solved for y. plug that y into the first equation, giving you\[2x(2x13)=11\]
 one year ago

mariannu Group TitleBest ResponseYou've already chosen the best response.0
Don't get it.
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
So chrismoon, you are instructing the asker to ignore the directions which say to solve using elimination?????
 one year ago

mariannu Group TitleBest ResponseYou've already chosen the best response.0
ALl I just want to know is just how to flip it. and thats it.
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
@mariannu Do what I said and then add the two equations to eliminate y from the system
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
What do you mean by flip it?
 one year ago

mariannu Group TitleBest ResponseYou've already chosen the best response.0
So its y + 2x = 11???
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
dw:1361938190124:dw
 one year ago

mariannu Group TitleBest ResponseYou've already chosen the best response.0
Ok that makes more sense thank you! ^.^ for the help. So I just do that for other equations like that right?
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
Do you mean other systems?
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
If so, the answer is yes.
 one year ago

mariannu Group TitleBest ResponseYou've already chosen the best response.0
Ok, thank you much!!! ^.^ lol
 one year ago

chrismoon Group TitleBest ResponseYou've already chosen the best response.0
You're given two things: Equation 1)\[2xy=11\]Equation 2) \[y=2x13\] Equation 2 tells you what y is already. You can put what y equals (2x13 in this case) into the first equation for y. Equation 1 goes from \[2xy=11\] to \[2x(2x13)=11\] since\[y=2x13\] Simplify your Equation 1 from \[2x(2x13)=11\] to \[2x+2x+13=11\]giving you \[4x=24\] divide both sides by 4 to solve for x \[x=6\] Now that you have solved for x, go all the way back to the original Equation 2\[y=2x13\] Since we know what x is now, plug it in\[y=2(6)13\]giving us \[y=1\] There you have it: \[y=1\]and \[x=6\]
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
@chrismoon Why do you keep telling the asker to ignore the directions given?
 one year ago

chrismoon Group TitleBest ResponseYou've already chosen the best response.0
Sorry, didn't see you guys already talked about it before I posted. Didn't get notified you guys got it taken care of.
 one year ago

Mertsj Group TitleBest ResponseYou've already chosen the best response.1
@chrismoon The problem says to solve by elimination. You keep telling the asker to use substitution.
 one year ago

chrismoon Group TitleBest ResponseYou've already chosen the best response.0
Guess I didn't read the question very thoroughly. My bad.
 one year ago

mariannu Group TitleBest ResponseYou've already chosen the best response.0
That is ok. As you try to help. but thanks
 one year ago
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