Write an equation and solve to find the solution to the following problem.

You have $43 to spend at the mall and a coupon for $5 off at your favorite store. A t-shirt costs $12. How many t-shirts can you buy using your coupon and money?

1 answer

Let x be the number of t-shirts you can buy.
The cost of each t-shirt is $12.
Considering the $5 off coupon, the equation becomes 12x - 5.
Since you have $43, the equation is 12x - 5 = 43.
Adding 5 to both sides, the equation becomes 12x = 48.
Dividing both sides of the equation by 12, x = 4.
You can buy 4 t-shirts using your coupon and money. Answer: \boxed{4}.