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8-126.

Simplify and solve each equation below for x. Show your work and check your answer, if possible.

  1.  

    Begin isolating by subtracting from both sides.


    Divide both sides by .

  1.  

    Begin by distributing.



    Add to both sides.

  1.  

    Follow the methods in parts (a) and (b).

  1.  

    Review the steps in part (b).