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  • 03-03-2016
  • Mathematics
Answered

What is a number 27 greater than twice the opposite of itself?

Verified Answer :

unicorn3125
unicorn3125 unicorn3125
  • 03-03-2016

the number:                                n
opposite number:                     -n
twice the opposite number:      2·(-n)=-2n
27 greater then -2n:                  -2n+27

 
n = -2n + 27
n + 2n = 27
 3n = 27
3·n = 3·9
 n = 9

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