A student attempts to solve for x in the equation below. Which statement best applies to the work shown below?
http://media.education2020.com/evresources/2065337_1-9-2014_4-26-57_pm.jpg
Please select the best answer from the choices provided
The student followed all rules correctly and solved for x.
The student's answer is negative but it should be positive.
The student made a mathematical error going from line 2 to line 3.
The student combined like terms incorrectly to get to line 1.

Question

A student attempts to solve for x in the equation below. Which statement best applies to the work shown below?
http://media.education2020.com/evresources/2065337_1-9-2014_4-26-57_pm.jpg
Please select the best answer from the choices provided
The student followed all rules correctly and solved for x.     
The student's answer is negative but it should be positive.
The student made a mathematical error going from line 2 to line 3.     
The student combined like terms incorrectly to get to line 1.

lasttccasey · Answer

Have you tried to solve this problem using the same steps?

anonymous · Answer

yes i am very bad at retaining information and i keep having to go back
please help

lasttccasey · Answer

Okay so the original equations is:
-6x - 2 + 3x - 9x = 6
The first step would be to add like terms so starting from the left..
-6x + 3x - 9x -2 = 6
-3x - 9x - 2 = 6
-12x - 2 = 6
-12x = 6 + 2
-12x = 8
x = -8/12

anonymous · Answer

The student combined like terms incorrectly to get to line 1?

anonymous · Answer

@lasttccasey

lasttccasey · Answer

Yes, that is correct. Sorry for the delay.