Step 1: We define the variables: x = cost of pizza y = each child's debt n = number of children Step 2: We have the following equation: y = x / n Step 3: We define the value of each variable: x = $ 9.00 n = 4 y =? Step 4: We substitute the values: y = (9.00) / 4 Step 5: We find the solution dividing both values: y = 2.25 $ Answer: each boy will owe: y = 2.25 $
