Question

does the line 3y+x=5 pass thru the point (2,7)?

Answer 1

substitute x = 2 and y = 7.... if you get 5, then the line passes through the line.

Answer 2

so yes?

Answer 3

so this is what you are saying... by saying yes....

I've substituted x = 2 and y = 7

\[3 \times 7 + 2 = 5\]