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    4. x-3=21
    x-3=21

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    0  Views: 538 Answers: 2 Posted: 12 years ago
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      2 Answers

      x-3=21


      x - 3 = 21  >  Note: Get (x) by itself. So, do the opposite of subtraction which is addition. Add (3) to the left and right side.


      x - 3 + 3 = 21 + 3


      x = 24


      Check answer:  Put (24) in place of (x) in the problem.


      24 - 3 =  21


          21   =  21


       

      12 years ago. Rating: 0
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