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LogicalApple
 2 years ago
Best ResponseYou've already chosen the best response.0I suppose the additive identity. You are either replacing "6 + 0" with "6", or you are replacing "0 + 5" with "5". In either case, you are using the additive identity.

skullpatrol
 2 years ago
Best ResponseYou've already chosen the best response.0The "Identity property of addition" justifies your equation because it states: There is a unique real real number 0 such that for every real number a, a+0=a and 0+a=a.
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