What is a possible first step in eliminating a variable in the following system of equations?

x + y = 3
3x – 4y = 23

Question

What is a possible first step in eliminating a variable in the following system of equations?

x + y = 3
3x – 4y = 23

anonymous · Answer

Multiply the first equation by –4. /
   Choices 1 and 2. /
   Multiply the first equation by 3. /
   None of the above.

anonymous · Answer

from what you have written down , none of the above

mertsj · Answer

The best choice would be to multiply the first equation by 4.  Then you would have 4y in the first equation and the second equation has -4y.  So if you added the two equations together, the y would be eliminated.

anonymous · Answer

So it is none of the above? because that's what makes senese?