What is the best possible first step to solving the following system by first eliminating the y variable?

x + y = 2
-2x + 3y = 9

Multiply the first equation by -3
Multiply the second equation by -2
Multiply the first equation by 2
Multiply the second equation by 3

Question

What is the best possible first step to solving the following system by first eliminating the y variable?

x + y = 2 
-2x + 3y = 9
 	
Multiply the first equation by -3
Multiply the second equation by -2
Multiply the first equation by 2
Multiply the second equation by 3

blurbendy · Answer

If you look at the second equation, you notice that it has +3y.  In order to eliminate +3y, what does the +y on top need to become?

blurbendy · Answer

hint: what is the opposite of positive

anonymous · Answer

negative

blurbendy · Answer

yup, so what's the opposite of +3y

anonymous · Answer

-3y