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

−9 + 2y

−9 − 2y

9 − 2y

9 + 2y

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 = 9
4x + 5y = 9 

 −9 + 2y 

 −9 − 2y 

 9 − 2y 

 9 + 2y

anonymous · Answer

K if we do it how it says, for the first equation we get x=2y+9. We will substitute the 2y+9 part into the 2nd equation and you answer is D>

anonymous · Answer

yea I was thinking D too....I was too busy talkin to you that I forgot i had a exam to do lol

anonymous · Answer

Lol I'll help you with the ones I can for as long as I can, but don't forget to give me medals :)

anonymous · Answer

okay :)

anonymous · Answer

Do you have any other questions, you need help with?

anonymous · Answer

yes