To fill in the blanks so that the two algebraic expressions are equivalent using the Commutative Property of Addition, we need to rearrange the terms.
The expressions provided are:
\[ 5 + __ + 1 + 7 = 4 + __ + 7 + 1 \]
We can see that both sides include the numbers 5, 1, 7 and 4, but we need to find the correct values to fill in the blanks.
Notice that:
- To maintain equality, the blanks must contain numbers that will balance both sides.
- Since \(5 + 1 + 7 = 13\) on the left side, and we need a total of 13 on the right side too.
Looking closely:
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When we choose 5 for the first blank, the left side becomes \(5 + 5 + 1 + 7\), which simplifies to \(18\).
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For the right side, we can fill the second blank with 1 because \(4 + 1 + 7 + 1 = 13\).
Thus, we fill in the blanks as follows:
\[ 5 + 5 + 1 + 7 = 4 + 1 + 7 + 1 \]
So, the completed expressions look like:
- First blank: 5
- Second blank: 5
Alternatively, both blanks can be 1, creating:
\[ 5 + 1 + 1 + 7 = 4 + 1 + 7 + 1 \]
Both scenarios maintain equivalence.