Assuming the number is x, then:
x + 9
As an algebraic expression it is: 2x-9
a number or algebraic expression by which another is exactly divisible. 3 is a factor of 9
The expression is 9*x.
9, 18, 27, ... All numbers whose digital sum is 9. A digital sum is the sum of all the digits of a number. If the sum happens to be greater than 9 then repeat the process of obtaining a digital sum until the result is 9 or smaller.
If the sum of the digits of a number is a multiple of 9, the number is a multiple of 9.
9*(x+ 2)
6
9x
N/9
As an algebraic expression it is: 2x-9
A number y decreased by 1 is equivalent to which of the following expressions? y - 1 y = 1 y + 1
x+9x
9t
3 plus x = 9
n-9
3n-9
Abs(9 - n)