document.write( "Question 345586: Solve by using the substitution method
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document.write( "x+y=56
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document.write( "x+3y=56 \n" );
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Algebra.Com's Answer #247163 by rfer(16322)![]() ![]() ![]() You can put this solution on YOUR website! 56-y+3y=56 \n" ); document.write( "2y=0 \n" ); document.write( "y=0 \n" ); document.write( "----------------- \n" ); document.write( "x=56 \n" ); document.write( "----------------- \n" ); document.write( " \n" ); document.write( " |