Hannah is at a restaurant. She spends $23 in total on an entree and a dessert. If the entree costs $5 more than the dessert, how much does the entree cost, in dollars? Think carefully first, then make a decision:
Let D be the cost of the dessert in dollars. The entree costs D + 5 dollars. D + (D + 5) = 23. 2D + 5 = 23. 2D = 18. D = 9. The entree costs $14. So, the answer is 14.