Algebraic Expressions and Substitution

Flashcards covering simplifying algebraic expressions, creating algebraic expressions, and substitution.

Simplifying

Reducing an algebraic expression to its simplest form.

Creating Algebraic Expressions

Writing mathematical expressions using variables and operations.

4 times a number (x)

4x

A number (x) divided by 6

x/6

The previous number (x)

x-1

One third of a number (x)

x/3

Substitution

Replacing a variable with a value to evaluate an algebraic expression.

Evaluate 2p + q, if p = 3 and q = 14

2(3) + 14 = 20

Evaluate pq + 2, if p = 3 and q = 14

3(14) + 2 = 44

Evaluate 5q - p², if p = 3 and q = 14

5(14) - 3² = 61