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    3. which is the solution of the equation 2b+6.7=12.9?
    which is the solution of the equation 2b+6.7=12.9?

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    0  Views: 787 Answers: 1 Posted: 13 years ago
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      1 Answer

      2b+6.7=12.9


      Get (2b) by itself. So, do the opposite of addition, which is subtraction. Subtract 6.7 on both sides.


      2b + 6.7 - 6.7 = 12.9 - 6.7


      2b = 6.2


      Now, divide by 2 on both sides  to get (b) by itself.


      2b/2 = 6.2/2


      b = 3.1


      Check your answer:  Rewrite the problem and put (3.1) in place of (b).


      2(3.1) + 6.7 = 12.9


      6.2 + 6.7 = 12.9


             12.9  = 12.9

      13 years ago. Rating: 2
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        bowlesy

        top answer
        commented 13 years ago


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