1. Evaluating Algebraic Expressions

2. 6 + 2x Variable: Constant: Expression:
Is a quantity that can change or vary. Mathematicians use letters to represent variables.
Constant:
A quantity that does not change.
Expression:
Is a mathematical phrase involving constants, variables, and operation symbols.

3. Evaluate each expression for x=1, 2, and 3.

4. Evaluate each expression for x=3, 4, and 5.

5. Evaluate each expression for x=6, 7, and 8.

6. Evaluate each expression for x=2, 4, and 6.

7. Evaluate each expression for x=1, 2, and 3.
𝟏𝟖 𝒙 1 2 3

8. Evaluate each expression x= 3, 4, 5.
7x x
𝑥 x + 23

9. Evaluate each expression for n = 5.
(3n + 5n)10
12 x 𝑛 2