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9-93.

Solve the equations below for the variable. Be sure to check your answer.  

  1.  

    Distrubute.

    Combine like terms.

    Subtract from each side.

    Add to each side.

    Substitute back into the original equation to check your answer.

    When you simplify this expression, do you get the same values on each side?

  1. Divide each term by .