The system of equations is coincident.

What are the missing values?
3x+y=7
9x+?y=?

Question

The system of equations is coincident.
 
What are the missing values?
3x+y=7
9x+?y=?

mathmale · Answer

What does "coincident" mean to you?

mathmale · Answer

How does one obtain 9x from 3x?

anonymous · Answer

um to be honest idk

mathmale · Answer

If you were to draw a straight line and then use another color pen to draw another straight line right on top of the first line, the two lines would be "coincident."
"Coincident" has different but similar meanings in general English usage and in algebra.
Hope you're developing the habit of looking up words you don't already know.

anonymous · Answer

ok

mathmale · Answer

Going back to my first question:  Looking at the pair of equations given you, how does one get from 3x in the first to 9x in the second equation?

anonymous · Answer

idk

mathmale · Answer

From 3 how would you obtain 9?   What are the four basic arithmetic operations you've learned?

anonymous · Answer

ok i got it now

mathmale · Answer

How does one obtain 9x from 3x?