Hi having trouble with this equation:

$\displaystyle 7x=18+3y$

$\displaystyle 2x+5y=11$

I have tried using the subsitution and elimatnation method but still cannot get the correct asnwer to what the book has.

which is

$\displaystyle x=3 $

$\displaystyle y=1$

Hope someone can help me.

P.S