If you wanted to eliminate the y variable by adding the two equations in the following system, what could be your first step?

5x − 6y = 6
x − y = 12
would it be ...
Add the two equations together
Multiply the second equation by −6
Multiply the first equation by −6
Multiply the second equation by 6

Question

If you wanted to eliminate the y variable by adding the two equations in the following system, what could be your first step? 

5x − 6y = 6
  x − y = 12
would it be ...
Add the two equations together
 Multiply the second equation by −6
Multiply the first equation by −6
Multiply the second equation by 6

anonymous · Answer

Multiply the second equation by -6

anonymous · Answer

thats what i thought

anonymous · Answer

(that would give you a +6y (-6y + 6y= 0 --> y variable is eliminated :) )