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Home > CC3 > Chapter 4 > Lesson 4.1.5 > Problem 4-51

4-51.

For each equation below, solve for the variable. Check your solutions, if possible, and show all work. Homework Help ✎

  1. , solve for 

    First, try rewriting all of the subtraction as addition, then attempt to solve by combining like terms.



    Since (or , depending on how you solved the problem), can equal any number.

  1. , solve for 

    Refer to parts (a) and (d).

  1. , solve for 

    Refer to parts (a) and (d).

  1. , solve for

    One strategy is to rewrite all of the subtraction within the problem as addition.

    Now simplify, starting with combining like terms and then isolating the variable.


    No solution because is not equal to .