What steps do you need to take to solve by eliminating the y variable for the following two equations 6x – y = –5 and 8x + 3y = –11?

Question

anonymous · Answer

Solve one of the equations for y and then substitute into the other equation everywhere there is a y :)

anonymous · Answer

here are the choices I have

	        A)Multiply the second equation by 3.
		B)Multiply the first equation by 3.
		C)None of the above.
	        D)Multiply the first equation by –3.

anonymous · Answer

ah, i see.
so you have this first

6x - y = -5
8x +3y = -11
----------------

we want to eliminate they y's by adding the two equations together and having they y's cancel out.  So we want one equation to have -3y and the other to have 3y. which choice would make that happen?

anonymous · Answer

is the correct answer B?

anonymous · Answer

correct! great job

anonymous · Answer

thanks alot!! :)