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12-47.

Solve each system. Homework Help ✎

  1. Multiply both equations by a common denominator to remove the fractions.


    Solve the new system of equations using the Elimination Method.

    , so .

    Substitute this value back into one of the original equations to solve for .

  1.      
     

    Simplify this system of equations using substitution.

    Start by solving the third equation for .

    Substitute this value into the first two equations and simplify.

    You can now solve this equation using the Elimination Method as in part (a).