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If 3x + 5 = 20, what is the value of x?

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Question: If 3x + 5 = 20, what is the value of x?

Options:

  1. 3
  2. 5
  3. 7
  4. 10

Correct Answer: 3

Solution: 

To solve for x, subtract 5 from both sides: 3x = 15. Then divide by 3: x = 5.

If 3x + 5 = 20, what is the value of x?

Practice Questions

Q1
If 3x + 5 = 20, what is the value of x?
  1. 3
  2. 5
  3. 7
  4. 10

Questions & Step-by-Step Solutions

If 3x + 5 = 20, what is the value of x?
Correct Answer: 5
  • Step 1: Start with the equation 3x + 5 = 20.
  • Step 2: To isolate the term with x, subtract 5 from both sides of the equation. This gives you 3x = 20 - 5.
  • Step 3: Simplify the right side. 20 - 5 equals 15, so now you have 3x = 15.
  • Step 4: Now, to find the value of x, divide both sides of the equation by 3. This gives you x = 15 / 3.
  • Step 5: Simplify the division. 15 divided by 3 equals 5, so x = 5.
  • Algebraic Equations – The question tests the ability to solve a linear equation for a variable.
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