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Simplifying equations and expressions using the

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When expressions have more than one operation, we have to follow rules for the

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Answer

To follow the order of operations in math, first do any calculations that are inside parentheses and take care of exponents and roots. Next, perform all multiplications and divisions, left to right. Then do all additions and subtractions, left to right.

A handy mnemonic for remembering the order of operations is PEMDAS, or "Please excuse my dear aunt Sally".

More Info

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Evaluating

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This example clarifies the purpose of