![]() ![]() Write an algebraic expression to represent his earnings for one day. The amount of money each employee will get is represented by the following algebraic expression:Įxample 5: An electrician charges $45 per hour and spends $20 a day on gasoline. Solution: Let e represent the number of employees in the company. ![]() PhraseĮxample 4: A small company has $1000 to distribute to its employees as a bonus. Let's look at an example in which the expression consists of more than one number and/or operation.Įxample 3: Write each phrase as an algebraic expression using the variable n. ![]() In Example 2, each algebraic expression consisted of one number, one operation and one variable. In the next few examples, we will be working solely with algebraic expressions.Įxample 2: Write each phrase as an algebraic expression. If x is 6, then the expression has a value of 15. If x is 2, then the expression 9 + x has a value of 11. The expression 9 + x represents a value that can change. This expression is a numerical expression, (also called an arithmetic expression). The expression 9 + 8 represents a single number (17). Let's look at an example in which we use a variable.Įxample 1: Write each phrase as a mathematical expression. The value of this number can vary (change). A variable is a symbol used to represent a number in an expression or an equation. In the problem above, the variable g represents the number of groups in Ms. g, or 2g can represent "g groups of 2 students".Solution: Let g represent the number of groups in Ms. Use mathematical symbols to represent all the students in her class. Jensen likes to divide her class into groups of 2. Use the following examples and interactive exercises to learn about Writing Algebraic Expressions. Algebraic Expressions With Example Problems and Interactive Exercises ![]()
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