document.write( "Question 856336: How do you solve systems of equations using substitution , for example how would you solve y=2x and 3x+3y=-18 \n" ); document.write( "
Algebra.Com's Answer #515862 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
duplicate \n" ); document.write( "
\n" );