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If 3x - 5 = 16, what is the value of x?

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Question: If 3x - 5 = 16, what is the value of x?

Options:

  1. 5
  2. 7
  3. 8
  4. 9

Correct Answer: 7

Solution: 

Add 5 to both sides: 3x = 21. Then divide by 3: x = 7.

If 3x - 5 = 16, what is the value of x?

Practice Questions

Q1
If 3x - 5 = 16, what is the value of x?
  1. 5
  2. 7
  3. 8
  4. 9

Questions & Step-by-Step Solutions

If 3x - 5 = 16, what is the value of x?
  • Step 1: Start with the equation 3x - 5 = 16.
  • Step 2: To get rid of the -5, add 5 to both sides of the equation.
  • Step 3: Now the equation looks like this: 3x = 16 + 5.
  • Step 4: Calculate 16 + 5, which equals 21. So now we have 3x = 21.
  • Step 5: Next, to find x, divide both sides of the equation by 3.
  • Step 6: Now the equation looks like this: x = 21 / 3.
  • Step 7: Calculate 21 divided by 3, which equals 7. So, x = 7.
  • Algebraic Equations – The question tests the ability to solve a linear equation for a variable.
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