Question

Problem:

Write the following statement as an algebraic expression.

A number is decreased by ten and the result is multiplied by 2.

Solution:

(x-10)*2= x*2-10*2 = = 2x-20


Answer the following question(s).

1. From the Algebraic Statement, "A number" is represented by...?

2. What are the common English letters used to represent a variable?

3. What are the letters that should not be used?

4. Identify the Algebraic property used to simplify the algebraic expression in the given problem.

5. What are the different Algebraic properties? Define them.

Answer 1

IT was replaced with a variable (x).

x,y,j,....q

o and p

Associative property.

Distributive property;Multiplying a sum of two or more adends by a number to get a result as multiplying the adend individually by the number and adding products.

Commutative; The other in which we multiply the number doesn't change the product.

Associative;You can add or multiply regardless how the numbers are grouped.