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anonymous
 one year ago
I Will Medal And Fan Best Answer! I need explantion AND answer!
49 + −30 =
−38 + −46 =
anonymous
 one year ago
I Will Medal And Fan Best Answer! I need explantion AND answer! 49 + −30 = −38 + −46 =

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Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0a positive sign and a negative sign together can be rewritten as a negative sign so your question becomes 4930 = ? 3846 = ?

rhr12
 one year ago
Best ResponseYou've already chosen the best response.2because  time  is + and  time + is 
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