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tatum123
tatum123 tatum123
  • 14-04-2016
  • Mathematics
Answered

the product of a number and three is added to six. The result is fifteen. What is the number?

7

-1

11

3

Verified Answer :

DeannaJ
DeannaJ DeannaJ
  • 14-04-2016

the number is 3
3x3=9 
9+6=15

Answer Link
penfila11Pen
penfila11Pen penfila11Pen
  • 14-04-2016

product of number added to six is fifteen
3n + 6 = 15
take 6 to the right side
3n + 6 - 6 = 15 - 6
3n = 9

Divide by 3 to isolate the unknown number n
\(\frac{3n}{3} = \frac{9}{3}\)
3 and 3 cancels out
n = 3

The number is 3

Answer Link

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