Some number minus 6 is equal to 20 minus 19

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)

It says factor each expression 49x-28?