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80

Step-by-step Answer
PAGE: 249SET: ExercisesPROBLEM: 80
Please look in your text book for this problem Statement

The equation is .

Apply addition property of equality: Add 6h to each side.

(Apply commutative property of addition: )

            (Apply additive inverse property: )

                  (Apply additive identity property: )

                        (Add: 4h + 6h = 10h)

Apply subtraction property of equality: Subtract 5 from each side.

                  (Apply additive inverse property: )

                        (Apply additive identity property: )

                              (Subtract: )

According to division property of equality: If a = b then

                         (Divide each side by 10)

                                (Cancel common terms)

                                 (Divide: )

Check:

To substitute in .

   (Substitute )

       (Product of two same signs is positive)

                (Multiply: )

                      (Add: )

                             (Subtract: )

The equality is true

The equality solution is .



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