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Pre-Algebra
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Which is an example of the commutative property? A. 21 + (–21) = 0 B. 11 + (–3 + 8) = (11 + –3) + 8 C. –(12 + 7) = –12 + (–7) D. 13 + (–19) = –19 + 13
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@BriannaBear
Sorry I'm bad at algebra
ok
@HelpOfTheGods
Commutative Property: \(\sf a + b = b + a\) So what do you think?
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b
No, that's incorrect..that's the Associative Property. \(\sf (a + b) + c = a + (b + c)\)
c
Don't guess, which one switches the numbers around?
C is the distributive property..it distributes -1 into the parenthesis.
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is it d
Yes, D is correct.
\(\sf 13 + (-19) = -19 + 13\)
thx
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