If you wanted to eliminate the y variable by adding the two equations in the following system, what could be your first step?
x - y = 6
-4x - 4y = 10

Question

If you wanted to eliminate the y variable by adding the two equations in the following system, what could be your first step?
x - y = 6
-4x - 4y = 10

anonymous · Answer

Multiply the second equation by -4.
		Add the two equations together.
		Multiply the first equation by 4.
		Multiply the first equation by -4.

anonymous · Answer

Multiply the second equations by -4

anonymous · Answer

You shouldn't multiply the second equation by -4 because it wouldn't cancel out the variable x. 
You should multiply the first equation by 4. Then you will have this:

4x - 4y = 24
-4x - 4y = 10

And the x variables will cancel each-other out and you can solve for y.