If you mean 2n+4, or 2n-4, that already is an algebraic expression.
The idea might be to put it into words.
2n+4 is twice n, increased by 4.
Notice you need a comma because if you write
twice n increased by 4 this is 2(n+4)
4/c
47< t
Exactly as in the question: 3r-1
G + 7
h-7
i think so...an algebric expression is that which involves algebric terms while an algebric expression is that algebric expression which involve an inequality sign.
4/c
An algebric expression can have any number of terms.
6(4+y)
An expression does not have an equals sign, An equation has an equals sign,
I am assuming that 2n is an algebraic expression, and n is limited to positive integer values. The first 4 multiples of 2n are 0 (2n*0), 2n (2n*1), 4n (2n*2), and 6n (2n*3). If you are looking for non-0 multiples, you would also include 8n (2n*4).
47< t
2(ab)
The algebraic term is: 2m
Expressed algebraically, this is equal to 4x - 500.
Exactly as in the question: 3r-1
5 > n