Algebra I - CR - Semester Test Review - Unit 1

18 + 2(6 – 2)

(a)  

40 - 2⁴ + 8

(a)  

Combine the like terms in the expression:

5b + 9 + 3b

• There are no like terms

• 8b + 9

• 2b + 9

• 17b

-9n + 12n + 7

• 28n

• 10n

• 21n + 7

• 3n + 7

Simplify the following expression:
3 + 5x + 8 - 2x

• -3x² - 11
• 3x² + 11
• 11 - 3x
• 11 + 3x

Solve the following equation:

n - 18 = 3

n = (a)  

Solve the following equation:

71 = s + 38

s = (a)  

Solve the following equation:

7x = 42

x = _

(a)  

Match the following:

• add, subtract, multiply, and divide

• Equation

• two equivalent expressions

• Operation

• a letter or symbol used to represent an unknown

• Constant

• a number by itself

• Coefficient

• a number in front of a variable

• Variable