Drag each tile to the correct location. each tile can be used more than once, but not all tiles will be used.

elani signed up for an installment plan with 0% interest to purchase a new couch that costs $770. she creates an equation to model the situation, where x represents the number of months and y represents the balance of the installment account:

y = 770 − 55x.

determine the missing steps and justifications in the solution.