Give the step-by-step reasoning process and then the final answer. Balki is counting the number of raisins in boxes of cereal. He counted 437 total raisins in 5 boxes. In one box he counted 72 raisins. In a second box he counted 74 raisins. The other three boxes had the same number each. How many were in each of the other three boxes?
Let x = the number of raisins in each of the other 3 boxes. Then 72 + 74 + 3x = 437 raisins. Combining like terms we get 146 + 3x = 437 raisins. Subtracting 146 from both sides we get 3x = 291 raisins. Dividing both sides by 3, we get x = 291 / 3 = 97 raisins.
The final answer: 97.