What is the solution to the system of equations?
x+y=5
x-2y=5

Question

What is the solution to the system of equations?
x+y=5
x-2y=5

anonymous · Answer

What method?

anonymous · Answer

substitution method.

anonymous · Answer

Cool, so what you want to do for this is isolate one of the variables (get x or y on its own) then substitute that into the second equation. Lets go from there for now, so can you do that please? Pick any variable and isolate it.

anonymous · Answer

I started the top one. I had y=5-x

anonymous · Answer

Very good, now what you want to do is take that y = 5-x and plug it as y in the second equation and you'll be left with just x to solve hence you can solve x. 

So do you understand what I'm saying?

anonymous · Answer

yeah.

anonymous · Answer

Alright so what does it look like when you plug the y expression in the second equation?