Question

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

get x in the first equation alone so I have x=3-y

I plug it in to the 2nd equation -2(3-y)+3y=9

distribute -6+2y+3y=9

then, -6+5y=9

add six to both sides and am left with

5y=15 divide both sides and get y=3

Plug y into x=3-y so x=3-3 so x=0?

Answer 1

Yup!

Answer 2

TY :)