Essay

The Rule of Grouping Symbols in Formulas

A billing supervisor is training a new employee on how to read cost formulas in the company's software. The software displays two similar-looking expressions: 4+374 + 3 \cdot 7 and (4+3)7(4 + 3) \cdot 7.

In a brief essay, describe the specific mathematical rule that determines why these two expressions result in different totals. In your response, clearly identify which operation (addition or multiplication) is performed first in each expression and state the final numerical result for both to demonstrate the impact of the grouping symbols.

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Updated 2026-04-20

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