Artaud noticed that if he took the opposite of his age and adds 40 he gets the number 28 how old is Artaud

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10-09-2017
Mathematics

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Artaud noticed that if he took the opposite of his age and adds 40 he gets the number 28 how old is Artaud

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YKitty2004 YKitty2004 · Answer 1 · 2017-09-10T08:50:55+02:00

YKitty2004 YKitty2004

10-09-2017

Artaud is 12 years old, because

28 = 40 + (-1)(x), x = Artaud's age
-1x +40 = 28
-x = -12
x = 12

You multiply x and -1, because that is how you get the opposite.

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