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Jack wants to simplify the expression below.

(6.7x -3) - (3.4x - 1) + (2x - 2)

Answer the following questions.

1) How can Jack regroup the expression by Commutative Property?

2) After regrouping in step 1, how can Jack further simplify the expression by

Distributive Property?

3) What is Jack's final simplified expression?

Respuesta :

Answer:

5.3x - 4 .

Step-by-step explanation:

(6.7x -3) - (3.4x - 1) + (2x - 2)

1. using the commutative property:

= 6.7x - 3 +  2x - 2 - (3.4x - 1)      (we can remove the parentheses around the first 2 groups because they are added).

2. Using the distributive property on the last group:

= 6.7x - 3 + 2x - 2 - 3.4x + 1   (distributing the negative over the parentheses).

3. Now adding like terms we get:

5.3x - 4 (answer).

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