Question

1. What property allows the expression 4.7x + 10.4 + 15.3x − 8.4x + 15.6 to be simplified to the equivalent expression 20x + 10.4 − 8.4x + 15.6?

Answer 1

Answer:

• commutative property
• distributive property

Step-by-step explanation:

The expression

  4.7x + 10.4 + 15.3x − 8.4x + 15.6

can be simplified in a few stages. First of all, we use the commutative property of addition to swap terms 2 and 3.

  4.7x +15.3x +10.4 -8.4x +15.6

Next, we use the distributive property to factor x from the first two terms.

  (4.7 +15.3)x +10.4 -8.4x +15.6

Now we perform addition.

  20x +10.4 -8.4x +15.6 . . . . . . . . equivalent expression

Answer 2

Answer:

commutative property of  multiplication

Step-by-step explanation: