Andrew bought 7 bundles of drawing sheets that each cost the same amount of money. the tax on his purchase was $1. he spent a total of $15. find the cost of each bundle of drawing sheets. which statement correctly describes how to solve the problem algebraically? answer choices subtract $1 from $15 and then add 7. subtract $1 from $15 and then subtract 7. solve the equation 7x−1=15 where x is the cost of each bundle of drawing sheets. solve the equation 7x+1=15 where x is the cost of each bundle of drawing sheets.