document.write( "Question 34765This question is from textbook Prealgebra & Introductory Algebra
\n" ); document.write( ": sOLVE THE SYSTEM OF EQUATIONS BY THE ADDITION METHOD\r
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\n" ); document.write( "\n" ); document.write( " x-7y=-42
\n" ); document.write( "3x-6y=-36
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Algebra.Com's Answer #21064 by checkley71(8403)\"\" \"About 
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X-7Y=-42
\n" ); document.write( "3X-6Y=-36 MULTIPLYING THE FIRST EQUATION BY -3 WE GET
\n" ); document.write( "-3X+21Y=126
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\n" ); document.write( "15Y=90 OR Y=6 THEN X=-42+7*6 OR X=-42+42 OR X=0
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