VARIABLES AND ALGEBRAIC EXPRESSIONS

VARIABLES AND ALGEBRAIC EXPRESSIONS

by Edna Godwin

​lesson 1-7 Variables and Algebraic Expressions

​Evaluate n-5 for each value of n

​1. n = 8

​n - 5

​(8 )- 5 = 3

​

2. n = 121

​n - 5

​(121) - 5 = 116

Multiple Choice

Evaluate each expression for the given values of the variable.

3n + 15 for n = 4

• 23

• 27

• 54

• 25

Multiple Choice

Evaluate: 2y - z for y = 21 and z = 19

• 42

• 19

• 43

• 23

Multiple Choice

evaluate: e² - 7 for e = 8

• 57

• 9

• 49

• 1