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4-98.

Find the point of intersection for each set of equations below using any method. Check your solutions, if possible.

  1.   

    Substitution is one way to solve this system.
    :

    Distribute the left side.

    Combine like terms.

    All numbers

  1.  
     

    Elimination is one method to solve this system.

  1.   

    Use substitution. Check your work.

  1.   

    Use the Equal Values method.