consider the steps to simplify the expression. Which property is used to reach Step 3? Expression: -4 3 7 + 7 + (-3 4 7 ) Step 1: = -4 3 7 + (-3 4 7 ) + 7 Step 2: = -4 + (- 3 7 ) + (-3) + (- 4 7 ) + 7 Step 3: = -4 + (- 3 7 ) + (- 4 7 ) + (-3) + 7 Step 4: = -4 + (-1) + (-3) + 7 Step 5: = -8 + 7 Step 6: = -1 A) The associate property of addition. B) The commutative property of addition. C) The opposite of a sum is the sum of its opposites. D) Subtracting a number is the same as adding its inverse.
It’s B
associate property
associate property ur all wrong
C) The opposite of a sum is the sum of its opposites.
The property used to reach Step 3 is the commutative property of addition, option B.
To simplify the expression, it looks like you are rearranging the terms to group the like terms together. The commutative property of addition states that you can change the order of the terms in an addition problem without changing the result. In Step 1, you moved the term "+7" to the end. Then in Step 2, you rearranged the terms within the parentheses by moving "-3 7" and "-4 7" to the front. So, the commutative property of addition allows you to change the order of addition.
Therefore, option B, the commutative property of addition, is the property used to reach Step 3.