It would be 2.56
Hope this helped you!
The answer to this problem is -5x=8
Cant really show you how to do it but the graph would start at the y axis at (0,-2) then from there each point would move to the left 4 and up 7 or back 4 and down 7. It would form a straight line.
Seems like its already rounded to the nearest thousandth any questions let me know