On a line y=1- what would that look like on a graph

What is a possible solutions of the x> 3?

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jamie pay at the end?

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !