SOLUTION: what property is 1.(a+3)=a+3

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Question 1012767: what property is 1.(a+3)=a+3
Found 3 solutions by stanbon, addingup, fractalier:
Answer by stanbon(75887) About Me  (Show Source):
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what property is 1.(a+3)=a+3
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identity or equality

Answer by addingup(3677) About Me  (Show Source):
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The Associative Law say that it doesn't matter how we group the numbers, so:
(a+3+5)= (a+3)+5= a+3+y, etc., any way you group them you get the same answer.
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By the way, it also applies to multiplication:
(a×b)×c = a×(b×c)
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How is it used? Sometimes it is easier to add or multiply in a different order. But you can't mix them. The law applies to pure multiplication or pure addition:
3+2+5= 11 any way you add them
3*2*5= 30 any way you multiply them.
BUT:
(3*2)+5 is not the same as 3+(2*5)
J

Answer by fractalier(6550) About Me  (Show Source):
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Since anything equals itself...we call that the reflexive property.