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Step-by-step Answer
PAGE: 146SET: ExercisesPROBLEM: 2
Please look in your text book for this problem Statement

The system of equations are .

           Equation (1)

             Equation (2)

Since , substitute for x in the first equation.

Apply subtraction property of equality: Subtract 2x from each side.

Rearrange the terms using distributive property of addition: a + b = b + a.

 

                              (Subtract)

        (Subtract 8 from each side)

        (Subtract: )

Apply division property of equality: Divide each side by negative 6.

     (Cancel common terms)

Apply 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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