Help me escape room b

True or false look at the picture pls : /

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

X+ y = 5 ; x - y =3 solve using linear combination