To express "n decreased by 3" in mathematical terms, you write it as ( n - 3 ). This indicates that you are subtracting 3 from the variable ( n ).
13-n=9. i think.
The question is ambiguous so the answer is one of:3/n - 5 or 3/(n-5)
"n divided into 3" = 3/n
In math, "one-half decreased by 3" can be written as the expression ( \frac{1}{2} - 3 ). This represents taking one-half and subtracting 3 from it.
18-(3*d) or 18-3d
3 - x
3n-7
13-n=9. i think.
n/3 - 2 = 6 n/3 = 8 n = 24
(3 + -8) - 8
If ten times the number n decreased by 13 is equal to the square of the same number n increased by 3, then the value of n is either 8 or 2.
The question is ambiguous so the answer is one of:3/n - 5 or 3/(n-5)
"n divided into 3" = 3/n
18-d3
18-(3*d) or 18-3d
18 - 3n
3n is the simplest, but you could also write it as 3*n or 3.n or 3xn. The problem with the last form is that it could represent the product of 3 and x and n.