Savings for a Laptop

Sarah has a savings account where she deposits a certain amount of money each month. If she starts with $200 and deposits an extra $100 every month, she plans to save enough to buy a laptop that costs $1,200. How many months will it take her to save enough money for the laptop?

Let m represent the number of months she saves.

To find the total amount saved after m months, the equation will be:

$$ 200 + 100m = 1200 $$