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.
If the sum of the digits of a number is a multiple of 9, the number is a multiple of 9.
6 + 4 + 6 = 16 1 + 6 = 7 → No; 646 is not divisible by 9 (there is a remainder of 7). ----------------------------------------- Only if the sum of the digits is divisible by 9 is the original number divisible by 9. Repeat the test on the sum until a single digit remains; only if this single digit is 9 is the original number divisible by 9, otherwise this single digit is the remainder when the original number is divided by 9.
9*(x+ 2)
6
The algebraic expression for the sum of x and 9 is x + 9. In this expression, x represents a variable that can take on any value, and 9 is a constant. When you add x and 9 together, you are combining the variable x with the constant 9 to get the sum. This expression can be simplified further if needed, but the basic form is x + 9.
9x
N/9
As an algebraic expression it is: 2x-9
x+9x
9t
3 plus x = 9
n-9
3n-9
Abs(9 - n)