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13-01-2015
Mathematics

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The product of 9 and a number is 12 less than three times that number.

What is the number?

Giving 20 Points....

Respuesta :

Аноним Аноним

13-01-2015

9n = 3n-12
-3n= -3n
6n= -12
divide by 6 = -2 =n

to check.. 9 times -2 = -18 soo.. 3 times -2= -6-12= -18

so it is correct!!

hope it helps :)

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