Question

Consider this equation: 2x +2=11

Now consider the equation written as: 3x +2=11
Which of the following is the correct property of equality that justifies rewriting the equation? 
A. Addition
B. Subtraction
C. Division 

Please explain why it is A., B., or C.

Answer 1

C: division because the first equation 2x+2=11 turns into 2x=9, you can't divide 9 by 2 and get a whole number. The second equation on the other hand 3x+2=11 turns into 3x=9 which equals 3. Hope this helps!