document.write( "Question 563164: solve systems of equation using either methods substitution or elimination.\r
\n" ); document.write( "\n" ); document.write( "y=4x
\n" ); document.write( "3x-y=1
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Algebra.Com's Answer #364825 by Alan3354(69443)\"\" \"About 
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solve systems of equation using either methods substitution or elimination.\r
\n" ); document.write( "\n" ); document.write( "y=4x
\n" ); document.write( "3x-y=1
\n" ); document.write( "---------
\n" ); document.write( "Sub 4x for y in the 2nd equation.
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