Which equation shows the substitution method being used to solve the system of linear equations?

x – y = 7
x = y + 3

A.
(y + 3) – y = 7

B.
x – y = y + 3

C.
x – (y + 3) = 7

D.
x = (7 – x) + 3

Question

Which equation shows the substitution method being used to solve the system of linear equations? 
 
x – y = 7 
x = y + 3
 
 A.
(y + 3) – y = 7
 
 B.
x – y = y + 3
 
 C.
x – (y + 3) = 7
 
 D.
x = (7 – x) + 3

twizttiez · Answer

@AnswerMyQuestions

anonymous · Answer

Did you have any ideas about this one?

twizttiez · Answer

Not really lol

anonymous · Answer

@butterflydreamer Do not give out the answer.

anonymous · Answer

@TwiztTiez So your second equation tells you what x equals, which is y + 3. So you take that, and place it where it shows x in the first equation. So what is your answer? @TwiztTiez

anonymous · Answer

@butterflydreamer You can learn a lot about the rules here: http://openstudy.com/code-of-conduct

twizttiez · Answer

Oh ok and lol yeah @butterflydreamer  people get mad plus it's against the rules but don't worry you didn't know

anonymous · Answer

So what is your answer?

twizttiez · Answer

Ok sorry im back

twizttiez · Answer

I think it's A @AnswerMyQuestions

anonymous · Answer

Correct!!!

twizttiez · Answer

Yush!