Question

solve for x&y by subtitution.please show me the steps :)
x-3x=7
x^2-xy+2y^2=16

Answer 1

typo on the first one maybe ?

Answer 2

Nope, there is no typo

Answer 3

so it is
\[x-3x=7\]
\[-2x=7\]
\[x=-\frac{7}{2}\]??

Answer 4

yeah i got x as well but i also need y