Step-by-step Answer
PAGE: 263SET: ExercisesPROBLEM: 1
Please look in your text book for this problem Statement

The equations are and  .

           Equation (1)

             Equation (2)

Since , substitute for x in the first equation.

           (Apply distributive property: )

                            (Multiply: )

                              (Add: )  

According to subtractionn property of equality: Subtract 2 from each side.

                       (Apply commutative property of addition: )

                             (Apply additive inverse property: )

                                    (Apply additive identity property: )

                                 (Subtract: )

                                (Multiply each side by negative one)

                                           (Product of two same signs is positive) 

Now, find the x value by substituting  in Equation 2.

                              (Product of two same signs is positive)

                                  (Add: )

The solution is .


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