Question 970093
You are supposed to just follow what the properties tell you; what they say.


a, b, c are real numbers.


{{{(a+b)+c=a+(b+c)}}}
Associative Property for Addition


{{{a+b+c=b+a+c}}}
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{{{a+b+c=a+c+b}}}
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{{{a+c+b=c+a+b}}}
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{{{b+a+c=b+c+a}}}
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Commutative Property for Addition