document.write( "Question 1133570: Solve each system of linear equations by either substitution or by adding equations.\r
\n" ); document.write( "\n" ); document.write( "3x − y = −4 \r
\n" ); document.write( "\n" ); document.write( "−5x + 2y = 9
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Algebra.Com's Answer #750810 by Alan3354(69443)\"\" \"About 
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