[6.02] 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 = 9
4x + 5y = 9

a. −9 + 2y
b. −9 − 2y
c. 9 − 2y
d. 9 + 2y

Question

[6.02] 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 = 9
4x + 5y = 9


	 a. −9 + 2y	
	 b. −9 − 2y	
	 c. 9 − 2y	
	 d. 9 + 2y

anonymous · Answer

Okay. It's basically asking to get x by itself in the first equation.
-x+2y=9
-x=9-2y
x=-9+2y

A.

anonymous · Answer

Wow I appreciate it, I had trouble with the problem for a long time!  is there a way to vouche for you?

anonymous · Answer

No problem. You can ... thanks! :)

anonymous · Answer

How can I? would gladly do so :[)

anonymous · Answer

You just did. Good luck! (Don't forget to close the question).