21+x
6+n
n + 10
(6+n) n= a number
divisor
the sum of a number and three
It is n + 14.
The algebraic expression for "4 less than the sum of a number and 5" is (n + 5) - 4, where n represents the unknown number.
Assuming the number is x, then: x + 9
x + 21
0.3333
An algebraic expression representing the sum of a number squared and 2 can be written as ( x^2 + 2 ), where ( x ) is the variable representing the number. In this expression, ( x^2 ) indicates the number squared, and adding 2 accounts for the additional term.
You cannot write an algebraic expression for that, you need an equation. The equation is n - 6 = 4