document.write( "Question 56256: please solve the system:
\n" ); document.write( "x+y=-5
\n" ); document.write( "x-y=12 \n" ); document.write( "

Algebra.Com's Answer #38160 by Cintchr(481) $\"\"$ $\"About$

You can put this solution on YOUR website!
Add the two equations.
\n" ); document.write( " $\"+x%2By=-5+\"$
\n" ); document.write( " $\"+x-y=12+\"$
\n" ); document.write( "________
\n" ); document.write( " $\"+2x+=+7\"$
\n" ); document.write( " $\"+x+=+7%2F2+\"$
\n" ); document.write( "Plug this into one of two equations
\n" ); document.write( " $\"+x-y=12+\"$
\n" ); document.write( " $\"+7%2F2+-y+=+12+\"$
\n" ); document.write( " $\"+7%2F2+-y+=+24%2F2+\"$
\n" ); document.write( " $\"+-y+=+17%2F2+\"$
\n" ); document.write( " $\"+y+=+-17%2F2+\"$ \n" ); document.write( "

\n" );