Algebra: Simplifying Expressions and Solving Equations

8v - 4(v + 8) = 8

• 2
• 10
• 4
• -4 

2x - 3 + 4x = 27

• 12
• 4
• 5
• 15

Find the Error
What error did the student make when solving the equation:
5x + 6 =  66
5x - 6 = 66 -6
5x = 60
5*5x= 60*5
x = 300

• The student subtracted 6 from both sides instead of adding
• Student multiplied by 5 instead of dividing by 5
• Student got the wrong answer when subtracting 66-6
• The student did not correctly eliminate the variable from one side of the equation

Simplify the expression: 7v + 2 + 12 + 2v

• 23
• 23v
• 9 + 14v
• 9v + 14

3a + 9 + 4a = 2

• -1
• 1
• no solution
• -7

 $50\ =-5\left(6n\ +\ 8\right)$  

•  $n\ =9$  

•  $n\ =\ -3$  

•  $n\ =-10$  

•  $n\ =\ -20$  

Solve the equation: 
4 - 2(x - 3) = 24

• - 7
• 7
• 14
• - 14

What is the first step in solving the equation 2a - 4(a - 5) = 10

• Add 4 to both sides
• Add the 2a and a 
• Distribute 4 to a and -5
• Distribute -4 to a and -5

Solve the following:
5 - 6² ÷ 4 - 3

• 1
• -10.75
• -31
• -7

7[12 − (6 − 2) ÷ 4]

• 7
• 77
• 14
• 0