# How to write an expression in math using subtraction

Subtraction keywords also include leading keywords, keywords that can be translated one word at a time, and keywords that are found in story problems. Subtraction happens a lot in real life.

Utilizing variables, you can state mathematical truths, like equation 1.

In fact, if two other letters take the place of x and y in equation 1the resulting statement means exactly the same thing as equation 1! Write an expression and a model showing 3 less than p. In our eggs example, since 3 eggs were left, we wrote 3 to the right of the equals sign.

Example 2 How can we show a number increased by 2? You've gathered six sticks for your campfire. Write an expression to show the sum of a, b, and c. He had a gain of seventeen pounds after working out with the team for four weeks. If you "read" each of the expressions separated by the equal sign from left to right, like you would text in a book, you see that each begins with a positive 6.

## Addition and subtraction of algebraic expressions class 8

Circle the leading keyword and indicate the corresponding AND that it defines. Should Exercises 6 and 7 have different expressions? Since 2 and -2 are opposites, we can say this another way: "subtraction of two yields the same result as addition of the opposite of 2. To the right of the equal sign a negative 2 follows the operation of addition. Please answer the following questions and discuss. Therefore, equation 1 states that every subtraction is always equivalent to addition of the opposite. You may also be wondering why the answer isn't pounds. Always double check you answer by plugging it back into the original equation. If you want to save a particular place in line but wish to leave for a time, your friend can reserve that same space by taking your place. Write an expression to show the difference of 3 and p.

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