Hi Margo can purchase tiles at a store for $0.99 per tile and rent a tile saw for $30. At another store, she can borrow the tile saw for free if she buys tiles there for $1.59 per tile How many 'x' tiles must she buy for the cost to be the same at both store 1.59x = .99x + 30 .6x = 30 x = 50 Tiles for the cost to be the same at both stores Checking our work; 1.59*50 = 79.50 = .99*50 + 30 checks. Wish You the Best in your Studies.