Quiz #7: Multi-Step Equations

Solve the following 1-step equations: 

 $3x\ =\ 27$  

 $x\ -\ 4\ =\ -7$  



 $\frac{x}{6}=\ 2$  

 $7\ =\ 2x-5$  

 $-3x\ +\ 2\ =\ -10$  

 $-2\ +\ \frac{x}{3}=\ 4$  

 $4\ =\ \frac{x\ +7}{3}$  

 $24\ =\ 3\left(3x\ -7\right)$ 

 $-2\left(x\ -\ 4\right)\ =\ -14$  

 $50\ =-5\left(6n\ +\ 8\right)$  

 $5(x-3)+2x=27$  

Find the Error

What error did the student make when solving the equation:

5x + 6 = 66
      - 6    - 6
       5x = 60
   (5)5x= 60(5)
         x = 300