Anumber decreased by 9 is equals to 6?

Hello from MrBillDoesMath!

The number =  15

Discussion:

Let the number be "n". The question states that

n - 9 = 6            

as "decreased by 9" means 9 less than the number or subtract 9 from the number.  Now add 9 to both sides:

n - 9 + 9 = 6 + 9 =>

n             = 6 + 9 = 15                    

where we used (-9 +9) = 0

Thank you,

MrB

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72