document.write( "Question 449989: Solve using the elimination method
\n" ); document.write( "5x-4y=10.5
\n" ); document.write( "20x-16y=42
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Algebra.Com's Answer #309550 by rwm(914)\"\" \"About 
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multiply first by 4
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\n" ); document.write( "is the same as the second
\n" ); document.write( "20x-16y=42
\n" ); document.write( "they are equivalent lines one over the other.
\n" ); document.write( "all solutions of one are the solutions of the other.
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