Question
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Calculate WITHOUT using a calculator:

Ask by Tyler Norris. in South Africa
Mar 24,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

The final answer is 21.

Solution

  1. Start with the expression:
  2. Apply the order of operations. First, perform the division:
    So the expression becomes:
  3. Next, perform the multiplication:
    Now the expression is:
  4. Subtracting a negative is the same as adding:
  5. Finally, compute the sum:
Thus, the final answer is:

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The Deep Dive

To solve , we need to follow the order of operations, often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).
  1. First, handle the division:
  2. Next, handle the multiplication:
Now substitute these values back into the expression:
  1. Perform the addition:
  2. Finally, perform the subtraction:
Therefore, the result is .

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