5n if n = 7 is 5 x 7, or 35.
(5n - 20) It's a binomial expression in 'n'. Its numerical value depends on the numerical value of 'n'.
5n + 3m This has an unknown value without more information. If you know the value of n and m then you can substitute and get a value for the expression.
5n
answer: 5n
It is an algebra expression meaning: 5n+4
30
It is: minus five multiplied by n = -5n
N
It is simply: 5n+20 which is an algebraic expression because it has no equality sign
no. an equation such as 5n = 6 has an equal sign however an expression such as 5n does not have an equal sign. it is called an expression because it is another way to EXPRESS 6
5(n4m)
68