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If 3a + 4 = 19, what is the value of a?

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Question: If 3a + 4 = 19, what is the value of a?

Options:

  1. 3
  2. 4
  3. 5
  4. 6

Correct Answer: 3

Solution: 

3a + 4 = 19 => 3a = 15 => a = 5.

If 3a + 4 = 19, what is the value of a?

Practice Questions

Q1
If 3a + 4 = 19, what is the value of a?
  1. 3
  2. 4
  3. 5
  4. 6

Questions & Step-by-Step Solutions

If 3a + 4 = 19, what is the value of a?
  • Step 1: Start with the equation 3a + 4 = 19.
  • Step 2: To isolate the term with 'a', subtract 4 from both sides of the equation. This gives you 3a = 19 - 4.
  • Step 3: Calculate 19 - 4, which equals 15. Now the equation is 3a = 15.
  • Step 4: To find the value of 'a', divide both sides of the equation by 3. This gives you a = 15 / 3.
  • Step 5: Calculate 15 divided by 3, which equals 5. So, a = 5.
  • Algebraic Manipulation – The question tests the ability to isolate a variable in a linear equation.
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