1. Algebraic Expressions & Solving Equations
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2. Algebraic Expression
A mathematical statement that usually includes one or more variables, constants, and at least one operation (+, – , x , ) but does not include an equals sign (=)
Example: 2x + 1

3. Algebraic Equation
An Algebraic expression that has an equals sign and can be solved. You can solve for the value of a variable.
Example: 3x +6= 12

4. Variable A letter used to represent a value that can change or vary
Example: in 4x – 1, “x” is the variable

5. Constant
A value that does not change and has no variable attached to it.
Example: in 4x – 1, “1” is the constant

6. Numerical Coefficient
Is a fixed number that is multiplied to a variable.
Example 2x – 8
2 is the numerical coefficient multiplied to x.

7. Term Part of an expression or equation
Formed by the product of numbers & variables that are separated by + & –
Examples: -1, x, 3y

8. Answer the following
What is the numerical coefficient in the following expressions.
a) 4p + 3
b) 2c
c) x + 4

9. Answer the following
What is the variable in the following expressions.
a) 4p + 3
b) 2c
c) x + 4

10. Answer the following
What is the numerical coefficient in the following expressions.
a) 4p + 3
b) 2c
c) x + 4

11. Complete the following questions on your own