document.write( "Question 811815: Como resuelvo este sistema de ecuaciones utilizando el metodo de sustitucion?\r
\n" ); document.write( "\n" ); document.write( "2x+3y=7
\n" ); document.write( "x-4y=-2\r
\n" ); document.write( "\n" ); document.write( "Gracias! \n" ); document.write( "
Algebra.Com's Answer #488912 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
x-4y=-2
\n" ); document.write( "x=4y-2
\n" ); document.write( "2*(4y-2)+3y=7
\n" ); document.write( "8y-4+3y=7
\n" ); document.write( "11y=11
\n" ); document.write( "y=1
\n" ); document.write( "x=4y-2
\n" ); document.write( "x=4-2
\n" ); document.write( "x=2
\n" ); document.write( "de nada\r
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