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If 7x = 21, what is the value of x?

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Question: If 7x = 21, what is the value of x?

Options:

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Correct Answer: 3

Solution: 

Dividing both sides by 7 gives x = 3.

If 7x = 21, what is the value of x?

Practice Questions

Q1
If 7x = 21, what is the value of x?
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Questions & Step-by-Step Solutions

If 7x = 21, what is the value of x?
  • Step 1: Start with the equation 7x = 21.
  • Step 2: To find the value of x, we need to get x by itself. We can do this by dividing both sides of the equation by 7.
  • Step 3: When we divide the left side (7x) by 7, we get x.
  • Step 4: Now, we divide the right side (21) by 7. 21 divided by 7 equals 3.
  • Step 5: So, after dividing both sides, we have x = 3.
  • Algebraic Equations – Understanding how to isolate a variable in a linear equation.
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