Answer:
8x
Step-by-step explanation:
3x+5x=(3+5)x
=8x
The first step would be to subtract 1 from both sides, leaving you with 5x = 10.
How I would do it is place a point at 1 then go up 1 over 4 because of your slope 1/4. Same as for going down except down 1 over 4. Hope this helped:)