Algebra 1 Evaluate Algebraic Expressions

If m = 9, what is 4m + 2m?

• 54

• 24

• 78

• 18

2(c - 8)

• 2c - 16

• 2c + 16

• 2c - 8

• c - 16

5 times a number, minus 8  

• 5m - 8

• 5(m + 8)

• 8m + 5

• 8(m + 5)

Write an algebraic expression for:
three times a number plus 16

• 3(16)+n

• 16n+3

• 3n+16

When a letter represents a number it is called what?

• Algebra

• a variable

• A numerical expression

• An algebraic expression

If a = 20 and b = 4, evaluate 5a

• 25

• 100

• 24

• 54

If a = 20 and b = 4, evaluate 11 + b

• 15

• 31

• 44

• 32

• 2

• 6

• 0

7 x (4 + 1) - 7 x 2
Evaluate and Solve

• 22

• 24

• 50

• 21

46 less than a number

• 46 - n

• n - 46

• 46 + n

• n + 46