Algebra refers to the part of mathematics where numbers in formulae and equations are represented by letters. In 45 + X, X represents a number.
It is an algebraic expression.
The best algebraic expression for 7 x plus 12 -4 is 7x+8.
X+9
x+5
It is an algebraic expression that can be simplified to: 7-x
It is an algebraic expression
It is an algebraic expression that can be simplified to: 23x-16
3 plus x = 9
x3+36 is an algebraic expression
5.9
x^2 plus 16y?
5