Which ordered pair is the solution to the system of equations?
x+3y=12 -4x+3y=-3

A.(0, 4)

B.(6, 2)

C.(3, 3)

D.(0, −1)

Question

Which ordered pair is the solution to the system of equations? 
x+3y=12    -4x+3y=-3  

A.(0, 4)  

B.(6, 2)  

C.(3, 3)  

D.(0, −1)

tkhunny · Answer

Have you considered substituting the given values into the two equations?

rebecca1588 · Answer

I think its C.(3, 3)?

welshfella · Answer

are you guessing or did you work it out?

tkhunny · Answer

Demonstrate the substitutions and the results.

rebecca1588 · Answer

I worked it out but I'd just like a second opinion :)

tkhunny · Answer

SHOW US!  We can't know what you did if you don't show us.  Give us the 1st Opinion and we can provide the second.

rebecca1588 · Answer

-x-3y=-12              
-4x+3y=-3
-----------
-5x=-15
x=3

and then

1 3+3y=12
3y=9
y=3

rebecca1588 · Answer

I'm going with C 
Thanks anyways.

welshfella · Answer

good work

tkhunny · Answer

Excellent.  Next time, start with that.