*HOW TO IDENTIFY AN ALGEBRAIC EXPRESSION*Look at the story below

John is a Riverside Accident Lawyer. He has 2 airplanes, 5 bikes and 9 cars. How many total items John has?

Answer:

__, we can represent what John has as 2a + 5b + 9c. In the expression 2a + 5b +9c, each addend is known as a term. Then, John has 100 dollar in his wallet. We can rewrite everything he has is 2a + 5b + 9c + 100.__

*In algebraic expression*__, we have four terms, e.g 2a, 5b, 9c, and 100, three variables, e.g a, b and c, three coefficients, e.g 2, 5, 9 and One constant, e.g 100. Constant doesn't have variables attached to them.__

*Based the algebraic expression above*Or, we can draw the expression as

Now, your turn to identify each of the following stories.

1. In a cottage area, there are 12 rooms, 7 computers and 2 owner wedding pictures. How many total items cottage has?
2. In an airline ticket room, there are sitting 9 old mans, 18 ladies, 7 men. How many total people are there?

3. An online store sells 120 laptops, 20 gold bars, 28 cerebral palsy legs. How many total items store sells?

## 2 comments

Great post, you've clearly explained the usage of algebraic expressions in generic word problems.

PS:I think there's a small typo in the post. You've added the constant as 1576 instead of 100, in the algebraic expression.

oh ya, thanks to clarify

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