document.write( "Question 108313: Solve the system by addition.
\n" );
document.write( " x + y = 9
\n" );
document.write( " x – y = 9
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #78943 by edjones(8007)![]() ![]() You can put this solution on YOUR website! x+y=9 \n" ); document.write( "x–y=9 \n" ); document.write( "------ \n" ); document.write( "2x=18 \n" ); document.write( ". \n" ); document.write( "2x/2=18/2 \n" ); document.write( "x=9 \n" ); document.write( "y=0 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |