What is 3x-2y=8 system of elimination 2x-2y=5

Pls! does anybody know a shortcut for answering these types of questions in the future?

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.)

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)