document.write( "Question 590137: how to solve this by using substitution
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document.write( "y=2x
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document.write( "x+y=12\r
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Algebra.Com's Answer #375046 by Alan3354(69443) You can put this solution on YOUR website! how to solve this by using substitution \n" ); document.write( "y=2x \n" ); document.write( "x+y=12 \n" ); document.write( "------------ \n" ); document.write( "Sub 2x for y in the 2nd equation. \n" ); document.write( " \n" ); document.write( " |