We know the store sold a total of 6 cans and 3 of which where tomato soup. With that we can create a fraction with number of tomato soup divided by number of soup sold. We can do the same thing with 8 cans but we don't know how many tomato sou cans are sold so we let 't' represent how many tomato soup are sold
Step 2: Equate the 2 fractions and solve
Step 3: Therefore statement
Therefore when 8 cans are sold we can expect 4 tomato soup cans will be sold