document.write( "Question 282373: How do I solve the following using the substitution steps? \r
\n" ); document.write( "\n" ); document.write( "5x+2y=7
\n" ); document.write( "y=x-7\r
\n" ); document.write( "\n" ); document.write( "Thank you. TJ
\n" ); document.write( "

Algebra.Com's Answer #205003 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
This not a word problem.
\n" ); document.write( "The only words were your question.\r
\n" ); document.write( "\n" ); document.write( "plug (x-7) in for y in 5x+2y=7 to get
\n" ); document.write( "5x+2*(x-7)=7
\n" ); document.write( "5x+2x-14=7
\n" ); document.write( "7x=21
\n" ); document.write( "x=3
\n" ); document.write( "y=x-7
\n" ); document.write( "y=3-7
\n" ); document.write( "y=-4
\n" ); document.write( "(3,-4)
\n" ); document.write( "
\n" );