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 hard. Detailed solution:
14
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.

.

Thus, the answer is 14