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DeciahiramSadisobh DeciahiramSadisobh
  • 10-11-2016
  • Mathematics
Answered

The product of a number and 9 less than the number is 90. find the number.

Verified Answer :

snue97
snue97 snue97
  • 11-11-2016

Factors of 36 that differ by 9 are 12 and 3; 
12*3 = 36 
Or you could write x(x - 9) - 36 = (x - 12)(x + 3) = 0 
The number was 12

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