Evaluate Algebraic Expressions with Variable Value Given

A mathematical phrase containing a variable.

• evaluate

• numerical expression

• algebraic expression

A letter or symbol used to represent an unknown quantity.

• evaluate

• variable

• substitude

What does it mean to evaluate?

• To perform multiple operations

• To simplify an expression

• To find the numerical value of.; substitute the value(s) given for the variable(s) and perform the operations according to the Order of Operations.

• order of operations

What is a coefficient?

• A letter in an equation

• A number multiplied by a variable in an algebraic expression.

• An operation in math

• A solution

Evaluate 3x + 8   if x = 2

• 13

• 14

• 15

• 16

Evaluate the expression when x = 8:  
7(6 + 3 − x)

• 72

• 56

• 21

• 7

(x + 4) + (3x + 9)

• 4x + 13

• 3x + 13

• 4x +5