document.write( "Question 327767: solve by substitution:\r
\n" ); document.write( "\n" ); document.write( "2x-y=0
\n" ); document.write( "3x+2y=-7
\n" ); document.write( "

Algebra.Com's Answer #234738 by Fombitz(32388)\"\" \"About 
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1.\"2x-y=0\"
\n" ); document.write( "2.\"3x%2B2y=-7\"
\n" ); document.write( "From eq. 1,
\n" ); document.write( "\"y=2x\"
\n" ); document.write( "Substitute into eq. 2,
\n" ); document.write( "\"3x%2B2%282x%29=-7\"
\n" ); document.write( "\"7x=-7\"
\n" ); document.write( "\"highlight%28x=-1%29\"
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "Then from above,
\n" ); document.write( "\"y=2x=2%28-1%29\"
\n" ); document.write( "\"highlight%28y=-2%29\"
\n" ); document.write( "
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