3n-9
It is two terms of an algebraic expression but if you mean -3 times -9 then it is 27
"9 less than c" can be expressed as "c - 9"
9(4+n)Nine times the sum of 4 and a number is an expression and can not be evaluated.
It is an algebraic expression involving x. Of do you mean 'what is x if 2x - 9 equals 9?' 2x - 9 = 9 ⇒ 2x - 9 + 9 = 9 + 9 ⇒ 2x = 18 ⇒ 2x ÷ 2 = 18 ÷ 2 ⇒ x = 9
x+9x
3n-9
It is two terms of an algebraic expression but if you mean -3 times -9 then it is 27
N/9
It is an algebraic expression for 9 reduced by 5 times y.
Assuming the number is x, then: x + 9
As an algebraic expression it is: 2x-9
9t
3 plus x = 9
Because "x" is a variable, it is the same as 9 times x.
9*(x+ 2)
n-9