What is the x-coordinate of the solution of the following system of equations?

3x + y = 6
x - y = 6

Question

What is the x-coordinate of the solution of the following system of equations?

3x + y = 6
x - y = 6

anonymous · Answer

3x + y = 6      =       y =-3x+6
x - y = 6

x-(-3x+6)=6
x+3x-6=6
4x+6=6
    -6  -6
4x=0
x=0

anonymous · Answer

I think i'm wrong. Let me recheck. :S

anonymous · Answer

1st one is wrong.

anonymous · Answer

Im going to go on a limb and say that the 0 answer is correct

anonymous · Answer

No it cant be the answers to my course say -3 
                                                                     0
                                                                     3

anonymous · Answer

3x + y = 6 = y =-3x+6 
x - y = 6 
x-(-3x+6)=6 
x+3x-6=6 
4x-6=6 
      +6 +6 
4x=12
x=3

anonymous · Answer

I see where i made the mistake.. In the 1st one that +6 was suppose to be -6

anonymous · Answer

u see?

anonymous · Answer

Ahhh

anonymous · Answer

yea i do

anonymous · Answer

ahah, so 3.. cya

anonymous · Answer

thanks