n+7 or X+7
This expression would be 3x-7.
It is an algebraic expression. It requires the user to multiply any given number by 3 and then add 7.
x to the third power plus 7
7 less than a number is an algebraic expression. Given the number the expression can be evaluated. 7 is less than a number is a statement in the form of an inequality. It is true for some values of the number and not for others.
It can be: x-7
2x + 7
7E
x-7
24 85
n+7 or X+7
x+7=y
x2+7
It can be: 7-4x as an algebraic expression
7 + 8 * n
2(n+7)
This expression would be 3x-7.