It is 2n + 20.

X = " a number " X + 20

Let the number be x and so the expression would be: x+20

4(x + 20)

15

Hans earned 20 less than ericka algebraic expression

let x = first number let y = second number x + y =20

20-n

Numerical Expression: 1.) 20+2-8 ( Or any other number with two symbols on math ) Algebraic Expression: 2.) h x 2 ( Or any other number using only one symbol an a letter ) The difference between a numerical and algebraic expressions is that numerical expressions use only numbers, but algebraic expressions use letters as variables to represent numbers.

13 + a + 7 = 5 + b - 20. This assumes the two numbers are different.

20 - 4h is an algebraic expression in one variable, h. It cannot be solved since it is not an equation nor an inequality; it cannot be evaluated without any information about h.

20\t5

It is simply: 5n+20 which is an algebraic expression because it has no equality sign

6*(3+20) = 138

It is simply 2x+20 which is an algebraic expression that has no equality sign.

You have to assign some variable name to "a number", for example, "n". The difference would be: 20 - n Half this difference is: (1/2) (20 - n) Or alternately: (20 - n) / 2

60 - 20 + 70 = 110

(x + y)/20

If x is used to represent the unknown number, then the expression for 20 times a number would be 20x.

an example of a expression is [7+3] x 20- 7= 13

This is an expression, not an equality (or inequality). It, therefore, cannot have a solution.

2 times a number minus 17 plus 20 times a number minus 9 is the same as 2x - 17 + 20x - 9 = 22x - 26

1

A factor is a number or algebraic expression by which another is exactly divisible.A multiple is a number or algebraic expression that can be divided by another number or algebraic expression without a remainder.Factors go into numbers, numbers go into multiples.

(x - 5)(x - 2)(x - 2)