Let’s take note of what we know already:
• He makes a down payment of $25
• He buys 15 additional installments of $12 each
Given that information, let’s set up an equation with y representing the total cost of the watch and x representing how many installments are bought:
y = 12(15) + 25
y = $180 + $25
y = $205
Answer Recap: The total cost of the watch is $205.
