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If a = 2 and b = 3, what is the value of 2a + 3b?

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Question: If a = 2 and b = 3, what is the value of 2a + 3b?

Options:

  1. 12
  2. 11
  3. 10
  4. 9

Correct Answer: 12

Solution: 

Substituting the values gives 2(2) + 3(3) = 4 + 9 = 13.

If a = 2 and b = 3, what is the value of 2a + 3b?

Practice Questions

Q1
If a = 2 and b = 3, what is the value of 2a + 3b?
  1. 12
  2. 11
  3. 10
  4. 9

Questions & Step-by-Step Solutions

If a = 2 and b = 3, what is the value of 2a + 3b?
  • Step 1: Identify the values of a and b. Here, a = 2 and b = 3.
  • Step 2: Substitute the values of a and b into the expression 2a + 3b.
  • Step 3: Replace a with 2: 2(2) + 3b.
  • Step 4: Now replace b with 3: 2(2) + 3(3).
  • Step 5: Calculate 2(2) which equals 4.
  • Step 6: Calculate 3(3) which equals 9.
  • Step 7: Add the results from Step 5 and Step 6: 4 + 9.
  • Step 8: The final result is 13.
  • Algebraic Substitution – The process of replacing variables with their given numerical values to evaluate an expression.
  • Basic Arithmetic – Performing addition and multiplication operations correctly.
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