document.write( "Question 483997: \"Solve each system by substitution.\"
\n" ); document.write( "y=-4x+16
\n" ); document.write( "y=2x+4\r
\n" ); document.write( "\n" ); document.write( "I changed y=-4x+16 to -4x+y=16 then I put the bottom equation (y=2x+4) into that so:
\n" ); document.write( "-4x+(2x+4)=16 and got x=-6 so I put that into y=2x+4 so y=2(6)+4 and got y=16 but I don't think it's right. (-6,16)
\n" ); document.write( "

Algebra.Com's Answer #331198 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
y=-4x+16\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "2x+4 =-4x+16\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "2x+4x =16-4\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "6x =12\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "x=12/6\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "x=2\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y=2x+4\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y=2(2)+4\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y=4+4\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y=8\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "So x = 2 and y = 8 giving us the ordered pair (2,8)
\n" ); document.write( "
\n" );